diff --git a/plugin-runtime-types/package.json b/plugin-runtime-types/package.json
index 079c31aa..3af981fd 100644
--- a/plugin-runtime-types/package.json
+++ b/plugin-runtime-types/package.json
@@ -9,7 +9,9 @@
   "scripts": {
     "build": "run-s build:copy-types build:tsc",
     "build:tsc": "tsc",
-    "build:copy-types": "cpy --flat ../src-tauri/yaak_plugin_runtime/bindings/*.ts ./src/bindings/",
+    "build:copy-types": "run-p build:copy-types:*",
+    "build:copy-types:root": "cpy --flat ../src-tauri/yaak_plugin_runtime/bindings/*.ts ./src/bindings",
+    "build:copy-types:next": "cpy --flat ../src-tauri/yaak_plugin_runtime/bindings/serde_json/*.ts ./src/bindings/serde_json",
     "prepublishOnly": "npm run build"
   },
   "dependencies": {
diff --git a/plugin-runtime-types/src/bindings/events.ts b/plugin-runtime-types/src/bindings/events.ts
index 747c9c3f..00e363c1 100644
--- a/plugin-runtime-types/src/bindings/events.ts
+++ b/plugin-runtime-types/src/bindings/events.ts
@@ -4,6 +4,7 @@ import type { Folder } from "./models";
 import type { GrpcRequest } from "./models";
 import type { HttpRequest } from "./models";
 import type { HttpResponse } from "./models";
+import type { JsonValue } from "./serde_json/JsonValue";
 import type { Workspace } from "./models";
 
 export type BootRequest = { dir: string, watch: boolean, };
@@ -56,9 +57,9 @@ export type ImportResources = { workspaces: Array<Workspace>, environments: Arra
 
 export type ImportResponse = { resources: ImportResources, };
 
-export type InternalEvent = { id: string, pluginRefId: string, replyId: string | null, payload: InternalEventPayload, };
+export type InternalEvent = { id: string, pluginRefId: string, replyId: string | null, payload: InternalEventPayload, windowContext: WindowContext, };
 
-export type InternalEventPayload = { "type": "boot_request" } & BootRequest | { "type": "boot_response" } & BootResponse | { "type": "reload_request" } | { "type": "reload_response" } | { "type": "terminate_request" } | { "type": "terminate_response" } | { "type": "import_request" } & ImportRequest | { "type": "import_response" } & ImportResponse | { "type": "filter_request" } & FilterRequest | { "type": "filter_response" } & FilterResponse | { "type": "export_http_request_request" } & ExportHttpRequestRequest | { "type": "export_http_request_response" } & ExportHttpRequestResponse | { "type": "send_http_request_request" } & SendHttpRequestRequest | { "type": "send_http_request_response" } & SendHttpRequestResponse | { "type": "get_http_request_actions_request" } & GetHttpRequestActionsRequest | { "type": "get_http_request_actions_response" } & GetHttpRequestActionsResponse | { "type": "call_http_request_action_request" } & CallHttpRequestActionRequest | { "type": "get_template_functions_request" } | { "type": "get_template_functions_response" } & GetTemplateFunctionsResponse | { "type": "call_template_function_request" } & CallTemplateFunctionRequest | { "type": "call_template_function_response" } & CallTemplateFunctionResponse | { "type": "copy_text_request" } & CopyTextRequest | { "type": "render_http_request_request" } & RenderHttpRequestRequest | { "type": "render_http_request_response" } & RenderHttpRequestResponse | { "type": "show_toast_request" } & ShowToastRequest | { "type": "get_http_request_by_id_request" } & GetHttpRequestByIdRequest | { "type": "get_http_request_by_id_response" } & GetHttpRequestByIdResponse | { "type": "find_http_responses_request" } & FindHttpResponsesRequest | { "type": "find_http_responses_response" } & FindHttpResponsesResponse | { "type": "empty_response" };
+export type InternalEventPayload = { "type": "boot_request" } & BootRequest | { "type": "boot_response" } & BootResponse | { "type": "reload_request" } | { "type": "reload_response" } | { "type": "terminate_request" } | { "type": "terminate_response" } | { "type": "import_request" } & ImportRequest | { "type": "import_response" } & ImportResponse | { "type": "filter_request" } & FilterRequest | { "type": "filter_response" } & FilterResponse | { "type": "export_http_request_request" } & ExportHttpRequestRequest | { "type": "export_http_request_response" } & ExportHttpRequestResponse | { "type": "send_http_request_request" } & SendHttpRequestRequest | { "type": "send_http_request_response" } & SendHttpRequestResponse | { "type": "get_http_request_actions_request" } & GetHttpRequestActionsRequest | { "type": "get_http_request_actions_response" } & GetHttpRequestActionsResponse | { "type": "call_http_request_action_request" } & CallHttpRequestActionRequest | { "type": "get_template_functions_request" } | { "type": "get_template_functions_response" } & GetTemplateFunctionsResponse | { "type": "call_template_function_request" } & CallTemplateFunctionRequest | { "type": "call_template_function_response" } & CallTemplateFunctionResponse | { "type": "copy_text_request" } & CopyTextRequest | { "type": "template_render_request" } & TemplateRenderRequest | { "type": "template_render_response" } & TemplateRenderResponse | { "type": "show_toast_request" } & ShowToastRequest | { "type": "get_http_request_by_id_request" } & GetHttpRequestByIdRequest | { "type": "get_http_request_by_id_response" } & GetHttpRequestByIdResponse | { "type": "find_http_responses_request" } & FindHttpResponsesRequest | { "type": "find_http_responses_response" } & FindHttpResponsesResponse | { "type": "empty_response" };
 
 export type RenderHttpRequestRequest = { httpRequest: HttpRequest, purpose: RenderPurpose, };
 
@@ -87,3 +88,9 @@ export type TemplateFunctionSelectArg = { options: Array<TemplateFunctionSelectO
 export type TemplateFunctionSelectOption = { name: string, value: string, };
 
 export type TemplateFunctionTextArg = { placeholder?: string | null, name: string, optional?: boolean | null, label?: string | null, defaultValue?: string | null, };
+
+export type TemplateRenderRequest = { data: JsonValue, purpose: RenderPurpose, };
+
+export type TemplateRenderResponse = { data: JsonValue, };
+
+export type WindowContext = { "type": "none" } | { "type": "label" } & string;
diff --git a/plugin-runtime-types/src/bindings/serde_json/JsonValue.ts b/plugin-runtime-types/src/bindings/serde_json/JsonValue.ts
new file mode 100644
index 00000000..606bac7a
--- /dev/null
+++ b/plugin-runtime-types/src/bindings/serde_json/JsonValue.ts
@@ -0,0 +1,3 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+export type JsonValue = number | string | Array<JsonValue> | { [key in string]?: JsonValue };
diff --git a/plugin-runtime-types/src/plugins/Context.ts b/plugin-runtime-types/src/plugins/Context.ts
index 83870b06..019624d9 100644
--- a/plugin-runtime-types/src/plugins/Context.ts
+++ b/plugin-runtime-types/src/plugins/Context.ts
@@ -1,3 +1,4 @@
+import { TemplateRenderRequest, TemplateRenderResponse } from '@yaakapp-internal/plugin';
 import {
   FindHttpResponsesRequest,
   FindHttpResponsesResponse,
@@ -25,4 +26,7 @@ export type Context = {
   httpResponse: {
     find(args: FindHttpResponsesRequest): Promise<FindHttpResponsesResponse['httpResponses']>;
   };
+  templates: {
+    render(args: TemplateRenderRequest): Promise<TemplateRenderResponse['data']>;
+  };
 };
diff --git a/plugin-runtime/src/index.worker.ts b/plugin-runtime/src/index.worker.ts
index e917863b..ffad79c4 100644
--- a/plugin-runtime/src/index.worker.ts
+++ b/plugin-runtime/src/index.worker.ts
@@ -1,13 +1,14 @@
+import { TemplateRenderResponse, WindowContext } from '@yaakapp-internal/plugin';
 import {
   BootRequest,
   Context,
   FindHttpResponsesResponse,
   GetHttpRequestByIdResponse,
+  HttpRequest,
   HttpRequestAction,
   ImportResponse,
   InternalEvent,
   InternalEventPayload,
-  RenderHttpRequestResponse,
   SendHttpRequestResponse,
   TemplateFunction,
 } from '@yaakapp/api';
@@ -51,21 +52,26 @@ async function initialize() {
   if (typeof mod.pluginHookImport === 'function') capabilities.push('import');
   if (typeof mod.pluginHookResponseFilter === 'function') capabilities.push('filter');
 
-  console.log('Plugin initialized', pkg.name, capabilities, Object.keys(mod));
+  console.log('Plugin initialized', pkg.name, { capabilities, enableWatch });
 
   function buildEventToSend(
+    windowContext: WindowContext,
     payload: InternalEventPayload,
     replyId: string | null = null,
   ): InternalEvent {
-    return { pluginRefId, id: genId(), replyId, payload };
+    return { pluginRefId, id: genId(), replyId, payload, windowContext };
   }
 
-  function sendEmpty(replyId: string | null = null): string {
-    return sendPayload({ type: 'empty_response' }, replyId);
+  function sendEmpty(windowContext: WindowContext, replyId: string | null = null): string {
+    return sendPayload(windowContext, { type: 'empty_response' }, replyId);
   }
 
-  function sendPayload(payload: InternalEventPayload, replyId: string | null): string {
-    const event = buildEventToSend(payload, replyId);
+  function sendPayload(
+    windowContext: WindowContext,
+    payload: InternalEventPayload,
+    replyId: string | null,
+  ): string {
+    const event = buildEventToSend(windowContext, payload, replyId);
     sendEvent(event);
     return event.id;
   }
@@ -78,10 +84,11 @@ async function initialize() {
   }
 
   async function sendAndWaitForReply<T extends Omit<InternalEventPayload, 'type'>>(
+    windowContext: WindowContext,
     payload: InternalEventPayload,
   ): Promise<T> {
     // 1. Build event to send
-    const eventToSend = buildEventToSend(payload, null);
+    const eventToSend = buildEventToSend(windowContext, payload, null);
 
     // 2. Spawn listener in background
     const promise = new Promise<InternalEventPayload>(async (resolve) => {
@@ -106,9 +113,10 @@ async function initialize() {
   }
 
   // Reload plugin if JS or package.json changes
+  const windowContextNone: WindowContext = { type: 'none' };
   const cb = async () => {
     await reloadModule();
-    return sendPayload({ type: 'reload_response' }, null);
+    return sendPayload(windowContextNone, { type: 'reload_response' }, null);
   };
 
   if (enableWatch) {
@@ -116,45 +124,78 @@ async function initialize() {
     watchFile(pathPkg, cb);
   }
 
-  const ctx: Context = {
+  const newCtx = (event: InternalEvent): Context => ({
     clipboard: {
       async copyText(text) {
-        await sendAndWaitForReply({ type: 'copy_text_request', text });
+        await sendAndWaitForReply(event.windowContext, { type: 'copy_text_request', text });
       },
     },
     toast: {
       async show(args) {
-        await sendAndWaitForReply({ type: 'show_toast_request', ...args });
+        await sendAndWaitForReply(event.windowContext, { type: 'show_toast_request', ...args });
       },
     },
     httpResponse: {
       async find(args) {
         const payload = { type: 'find_http_responses_request', ...args } as const;
-        const { httpResponses } = await sendAndWaitForReply<FindHttpResponsesResponse>(payload);
+        const { httpResponses } = await sendAndWaitForReply<FindHttpResponsesResponse>(
+          event.windowContext,
+          payload,
+        );
         return httpResponses;
       },
     },
     httpRequest: {
       async getById(args) {
         const payload = { type: 'get_http_request_by_id_request', ...args } as const;
-        const { httpRequest } = await sendAndWaitForReply<GetHttpRequestByIdResponse>(payload);
+        const { httpRequest } = await sendAndWaitForReply<GetHttpRequestByIdResponse>(
+          event.windowContext,
+          payload,
+        );
         return httpRequest;
       },
       async send(args) {
         const payload = { type: 'send_http_request_request', ...args } as const;
-        const { httpResponse } = await sendAndWaitForReply<SendHttpRequestResponse>(payload);
+        const { httpResponse } = await sendAndWaitForReply<SendHttpRequestResponse>(
+          event.windowContext,
+          payload,
+        );
         return httpResponse;
       },
+      /** @deprecated: please use ctx.templates.render */
       async render(args) {
-        const payload = { type: 'render_http_request_request', ...args } as const;
-        const result = await sendAndWaitForReply<RenderHttpRequestResponse>(payload);
-        return result.httpRequest;
+        const payload = {
+          type: 'template_render_request',
+          data: args.httpRequest,
+          purpose: args.purpose,
+        } as const;
+        const result = await sendAndWaitForReply<TemplateRenderResponse>(
+          event.windowContext,
+          payload,
+        );
+        return result.data as HttpRequest;
       },
     },
-  };
+    templates: {
+      /**
+       * Invoke Yaak's template engine to render a value. If the value is a nested type
+       * (eg. object), it will be recursively rendered.
+       * */
+      async render(args) {
+        const payload = { type: 'template_render_request', ...args } as const;
+        const result = await sendAndWaitForReply<TemplateRenderResponse>(
+          event.windowContext,
+          payload,
+        );
+        return result.data;
+      },
+    },
+  });
 
   // Message comes into the plugin to be processed
-  parentPort!.on('message', async ({ payload, id: replyId }: InternalEvent) => {
+  parentPort!.on('message', async (event: InternalEvent) => {
+    let { windowContext, payload, id: replyId } = event;
+    const ctx = newCtx(event);
     try {
       if (payload.type === 'boot_request') {
         const payload: InternalEventPayload = {
@@ -163,7 +204,7 @@ async function initialize() {
           version: pkg.version,
           capabilities,
         };
-        sendPayload(payload, replyId);
+        sendPayload(windowContext, payload, replyId);
         return;
       }
 
@@ -171,7 +212,7 @@ async function initialize() {
         const payload: InternalEventPayload = {
           type: 'terminate_response',
         };
-        sendPayload(payload, replyId);
+        sendPayload(windowContext, payload, replyId);
         return;
       }
 
@@ -182,7 +223,7 @@ async function initialize() {
             type: 'import_response',
             resources: reply?.resources,
           };
-          sendPayload(replyPayload, replyId);
+          sendPayload(windowContext, replyPayload, replyId);
           return;
         } else {
           // Continue, to send back an empty reply
@@ -198,7 +239,7 @@ async function initialize() {
           type: 'export_http_request_response',
           content: reply,
         };
-        sendPayload(replyPayload, replyId);
+        sendPayload(windowContext, replyPayload, replyId);
         return;
       }
 
@@ -211,7 +252,7 @@ async function initialize() {
           type: 'filter_response',
           content: reply,
         };
-        sendPayload(replyPayload, replyId);
+        sendPayload(windowContext, replyPayload, replyId);
         return;
       }
 
@@ -231,7 +272,7 @@ async function initialize() {
           pluginRefId,
           actions: reply,
         };
-        sendPayload(replyPayload, replyId);
+        sendPayload(windowContext, replyPayload, replyId);
         return;
       }
 
@@ -251,7 +292,7 @@ async function initialize() {
           pluginRefId,
           functions: reply,
         };
-        sendPayload(replyPayload, replyId);
+        sendPayload(windowContext, replyPayload, replyId);
         return;
       }
 
@@ -264,7 +305,7 @@ async function initialize() {
         );
         if (typeof action?.onSelect === 'function') {
           await action.onSelect(ctx, payload.args);
-          sendEmpty(replyId);
+          sendEmpty(windowContext, replyId);
           return;
         }
       }
@@ -278,7 +319,14 @@ async function initialize() {
         );
         if (typeof action?.onRender === 'function') {
           const result = await action.onRender(ctx, payload.args);
-          sendPayload({ type: 'call_template_function_response', value: result ?? null }, replyId);
+          sendPayload(
+            windowContext,
+            {
+              type: 'call_template_function_response',
+              value: result ?? null,
+            },
+            replyId,
+          );
           return;
         }
       }
@@ -292,7 +340,7 @@ async function initialize() {
     }
 
     // No matches, so send back an empty response so the caller doesn't block forever
-    sendEmpty(replyId);
+    sendEmpty(windowContext, replyId);
   });
 }
 
diff --git a/src-tauri/src/http_request.rs b/src-tauri/src/http_request.rs
index 489a3594..0d32c9e7 100644
--- a/src-tauri/src/http_request.rs
+++ b/src-tauri/src/http_request.rs
@@ -27,6 +27,7 @@ use yaak_models::models::{
     Cookie, CookieJar, Environment, HttpRequest, HttpResponse, HttpResponseHeader, HttpUrlParameter,
 };
 use yaak_models::queries::{get_workspace, update_response_if_id, upsert_cookie_jar};
+use yaak_plugin_runtime::events::{RenderPurpose, WindowContext};
 
 pub async fn send_http_request<R: Runtime>(
     window: &WebviewWindow<R>,
@@ -39,8 +40,11 @@ pub async fn send_http_request<R: Runtime>(
     let workspace = get_workspace(window, &request.workspace_id)
         .await
         .expect("Failed to get Workspace");
-    let cb = &*window.app_handle().state::<PluginTemplateCallback>();
-    let cb = cb.for_send();
+    let cb = PluginTemplateCallback::new(
+        window.app_handle(),
+        &WindowContext::from_window(window),
+        RenderPurpose::Send,
+    );
     let rendered_request =
         render_http_request(&request, &workspace, environment.as_ref(), &cb).await;
 
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 14a24d6c..9d999bce 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -16,6 +16,7 @@ use chrono::Utc;
 use fern::colors::ColoredLevelConfig;
 use log::{debug, error, info, warn};
 use rand::random;
+use regex::Regex;
 use serde_json::{json, Value};
 #[cfg(target_os = "macos")]
 use tauri::TitleBarStyle;
@@ -36,7 +37,7 @@ use crate::export_resources::{get_workspace_export_resources, WorkspaceExportRes
 use crate::grpc::metadata_to_map;
 use crate::http_request::send_http_request;
 use crate::notifications::YaakNotifier;
-use crate::render::{render_grpc_request, render_http_request, render_template};
+use crate::render::{render_grpc_request, render_json_value, render_template};
 use crate::template_callback::PluginTemplateCallback;
 use crate::updates::{UpdateMode, YaakUpdater};
 use crate::window_menu::app_menu;
@@ -60,8 +61,8 @@ use yaak_models::queries::{
 use yaak_plugin_runtime::events::{
     BootResponse, CallHttpRequestActionRequest, FilterResponse, FindHttpResponsesResponse,
     GetHttpRequestActionsResponse, GetHttpRequestByIdResponse, GetTemplateFunctionsResponse, Icon,
-    InternalEvent, InternalEventPayload, RenderHttpRequestResponse, SendHttpRequestResponse,
-    ShowToastRequest,
+    InternalEvent, InternalEventPayload, RenderPurpose, SendHttpRequestResponse, ShowToastRequest,
+    TemplateRenderResponse, WindowContext,
 };
 use yaak_plugin_runtime::plugin_handle::PluginHandle;
 use yaak_templates::{Parser, Tokens};
@@ -121,8 +122,9 @@ async fn cmd_template_tokens_to_string(tokens: Tokens) -> Result<String, String>
 }
 
 #[tauri::command]
-async fn cmd_render_template(
-    window: WebviewWindow,
+async fn cmd_render_template<R: Runtime>(
+    window: WebviewWindow<R>,
+    app_handle: AppHandle<R>,
     template: &str,
     workspace_id: &str,
     environment_id: Option<&str>,
@@ -139,18 +141,22 @@ async fn cmd_render_template(
         .await
         .map_err(|e| e.to_string())?;
     let rendered = render_template(
-        window.app_handle(),
         template,
         &workspace,
         environment.as_ref(),
+        &PluginTemplateCallback::new(
+            &app_handle,
+            &WindowContext::from_window(&window),
+            RenderPurpose::Preview,
+        ),
     )
     .await;
     Ok(rendered)
 }
 
 #[tauri::command]
-async fn cmd_dismiss_notification(
-    window: WebviewWindow,
+async fn cmd_dismiss_notification<R: Runtime>(
+    window: WebviewWindow<R>,
     notification_id: &str,
     yaak_notifier: State<'_, Mutex<YaakNotifier>>,
 ) -> Result<(), String> {
@@ -162,10 +168,10 @@ async fn cmd_dismiss_notification(
 }
 
 #[tauri::command]
-async fn cmd_grpc_reflect(
+async fn cmd_grpc_reflect<R: Runtime>(
     request_id: &str,
     proto_files: Vec<String>,
-    window: WebviewWindow,
+    window: WebviewWindow<R>,
     grpc_handle: State<'_, Mutex<GrpcHandle>>,
 ) -> Result<Vec<ServiceDefinition>, String> {
     let req = get_grpc_request(&window, request_id)
@@ -189,11 +195,11 @@ async fn cmd_grpc_reflect(
 }
 
 #[tauri::command]
-async fn cmd_grpc_go(
+async fn cmd_grpc_go<R: Runtime>(
     request_id: &str,
     environment_id: Option<&str>,
     proto_files: Vec<String>,
-    window: WebviewWindow,
+    window: WebviewWindow<R>,
     grpc_handle: State<'_, Mutex<GrpcHandle>>,
 ) -> Result<String, String> {
     let environment = match environment_id {
@@ -210,8 +216,17 @@ async fn cmd_grpc_go(
     let workspace = get_workspace(&window, &req.workspace_id)
         .await
         .map_err(|e| e.to_string())?;
-    let req =
-        render_grpc_request(window.app_handle(), &req, &workspace, environment.as_ref()).await;
+    let req = render_grpc_request(
+        &req,
+        &workspace,
+        environment.as_ref(),
+        &PluginTemplateCallback::new(
+            window.app_handle(),
+            &WindowContext::from_window(&window),
+            RenderPurpose::Send,
+        ),
+    )
+    .await;
     let mut metadata = BTreeMap::new();
 
     // Add the rest of metadata
@@ -345,7 +360,7 @@ async fn cmd_grpc_go(
 
         move |ev: tauri::Event| {
             if *cancelled_rx.borrow() {
-                // Stream is cancelled
+                // Stream is canceled
                 return;
             }
 
@@ -750,13 +765,13 @@ async fn cmd_send_ephemeral_request(
 }
 
 #[tauri::command]
-async fn cmd_filter_response(
-    w: WebviewWindow,
+async fn cmd_filter_response<R: Runtime>(
+    window: WebviewWindow<R>,
     response_id: &str,
     plugin_manager: State<'_, PluginManager>,
     filter: &str,
 ) -> Result<FilterResponse, String> {
-    let response = get_http_response(&w, response_id)
+    let response = get_http_response(&window, response_id)
         .await
         .expect("Failed to get http response");
 
@@ -776,14 +791,14 @@ async fn cmd_filter_response(
 
     // TODO: Have plugins register their own content type (regex?)
     plugin_manager
-        .filter_data(filter, &body, &content_type)
+        .filter_data(&window, filter, &body, &content_type)
         .await
         .map_err(|e| e.to_string())
 }
 
 #[tauri::command]
-async fn cmd_import_data(
-    w: WebviewWindow,
+async fn cmd_import_data<R: Runtime>(
+    window: WebviewWindow<R>,
     plugin_manager: State<'_, PluginManager>,
     file_path: &str,
 ) -> Result<WorkspaceExportResources, String> {
@@ -791,7 +806,7 @@ async fn cmd_import_data(
         read_to_string(file_path).unwrap_or_else(|_| panic!("Unable to read file {}", file_path));
     let file_contents = file.as_str();
     let (import_result, plugin_name) = plugin_manager
-        .import_data(file_contents)
+        .import_data(&window, file_contents)
         .await
         .map_err(|e| e.to_string())?;
 
@@ -828,7 +843,9 @@ async fn cmd_import_data(
 
     for mut v in resources.workspaces {
         v.id = maybe_gen_id(v.id.as_str(), ModelType::TypeWorkspace, &mut id_map);
-        let x = upsert_workspace(&w, v).await.map_err(|e| e.to_string())?;
+        let x = upsert_workspace(&window, v)
+            .await
+            .map_err(|e| e.to_string())?;
         imported_resources.workspaces.push(x.clone());
     }
     info!(
@@ -843,7 +860,9 @@ async fn cmd_import_data(
             ModelType::TypeWorkspace,
             &mut id_map,
         );
-        let x = upsert_environment(&w, v).await.map_err(|e| e.to_string())?;
+        let x = upsert_environment(&window, v)
+            .await
+            .map_err(|e| e.to_string())?;
         imported_resources.environments.push(x.clone());
     }
     info!(
@@ -875,7 +894,7 @@ async fn cmd_import_data(
             if let Some(_) = imported_resources.folders.iter().find(|f| f.id == v.id) {
                 continue;
             }
-            let x = upsert_folder(&w, v).await.map_err(|e| e.to_string())?;
+            let x = upsert_folder(&window, v).await.map_err(|e| e.to_string())?;
             imported_resources.folders.push(x.clone());
         }
     }
@@ -889,7 +908,7 @@ async fn cmd_import_data(
             &mut id_map,
         );
         v.folder_id = maybe_gen_id_opt(v.folder_id, ModelType::TypeFolder, &mut id_map);
-        let x = upsert_http_request(&w, v)
+        let x = upsert_http_request(&window, v)
             .await
             .map_err(|e| e.to_string())?;
         imported_resources.http_requests.push(x.clone());
@@ -907,7 +926,7 @@ async fn cmd_import_data(
             &mut id_map,
         );
         v.folder_id = maybe_gen_id_opt(v.folder_id, ModelType::TypeFolder, &mut id_map);
-        let x = upsert_grpc_request(&w, &v)
+        let x = upsert_grpc_request(&window, &v)
             .await
             .map_err(|e| e.to_string())?;
         imported_resources.grpc_requests.push(x.clone());
@@ -918,7 +937,7 @@ async fn cmd_import_data(
     );
 
     analytics::track_event(
-        &w,
+        &window,
         AnalyticsResource::App,
         AnalyticsAction::Import,
         Some(json!({ "plugin": plugin_name })),
@@ -929,52 +948,55 @@ async fn cmd_import_data(
 }
 
 #[tauri::command]
-async fn cmd_http_request_actions(
+async fn cmd_http_request_actions<R: Runtime>(
+    window: WebviewWindow<R>,
     plugin_manager: State<'_, PluginManager>,
 ) -> Result<Vec<GetHttpRequestActionsResponse>, String> {
     plugin_manager
-        .get_http_request_actions()
+        .get_http_request_actions(&window)
         .await
         .map_err(|e| e.to_string())
 }
 
 #[tauri::command]
-async fn cmd_template_functions(
+async fn cmd_template_functions<R: Runtime>(
+    window: WebviewWindow<R>,
     plugin_manager: State<'_, PluginManager>,
 ) -> Result<Vec<GetTemplateFunctionsResponse>, String> {
     plugin_manager
-        .get_template_functions()
+        .get_template_functions(&window)
         .await
         .map_err(|e| e.to_string())
 }
 
 #[tauri::command]
-async fn cmd_call_http_request_action(
+async fn cmd_call_http_request_action<R: Runtime>(
+    window: WebviewWindow<R>,
     req: CallHttpRequestActionRequest,
     plugin_manager: State<'_, PluginManager>,
 ) -> Result<(), String> {
     plugin_manager
-        .call_http_request_action(req)
+        .call_http_request_action(&window, req)
         .await
         .map_err(|e| e.to_string())
 }
 
 #[tauri::command]
-async fn cmd_curl_to_request(
+async fn cmd_curl_to_request<R: Runtime>(
+    window: WebviewWindow<R>,
     command: &str,
     plugin_manager: State<'_, PluginManager>,
     workspace_id: &str,
-    w: WebviewWindow,
 ) -> Result<HttpRequest, String> {
     let (import_result, plugin_name) = {
         plugin_manager
-            .import_data(command)
+            .import_data(&window, command)
             .await
             .map_err(|e| e.to_string())?
     };
 
     analytics::track_event(
-        &w,
+        &window,
         AnalyticsResource::App,
         AnalyticsAction::Import,
         Some(json!({ "plugin": plugin_name })),
@@ -1176,19 +1198,19 @@ async fn cmd_create_workspace(name: &str, w: WebviewWindow) -> Result<Workspace,
 }
 
 #[tauri::command]
-async fn cmd_install_plugin(
+async fn cmd_install_plugin<R: Runtime>(
     directory: &str,
     url: Option<String>,
     plugin_manager: State<'_, PluginManager>,
-    w: WebviewWindow,
+    window: WebviewWindow<R>,
 ) -> Result<Plugin, String> {
     plugin_manager
-        .add_plugin_by_dir(&directory, true)
+        .add_plugin_by_dir(WindowContext::from_window(&window), &directory, true)
         .await
         .map_err(|e| e.to_string())?;
 
     let plugin = upsert_plugin(
-        &w,
+        &window,
         Plugin {
             directory: directory.into(),
             url,
@@ -1202,17 +1224,20 @@ async fn cmd_install_plugin(
 }
 
 #[tauri::command]
-async fn cmd_uninstall_plugin(
+async fn cmd_uninstall_plugin<R: Runtime>(
     plugin_id: &str,
     plugin_manager: State<'_, PluginManager>,
-    w: WebviewWindow,
+    window: WebviewWindow<R>,
 ) -> Result<Plugin, String> {
-    let plugin = delete_plugin(&w, plugin_id)
+    let plugin = delete_plugin(&window, plugin_id)
         .await
         .map_err(|e| e.to_string())?;
 
     plugin_manager
-        .uninstall(plugin.directory.as_str())
+        .uninstall(
+            WindowContext::from_window(&window),
+            plugin.directory.as_str(),
+        )
         .await
         .map_err(|e| e.to_string())?;
 
@@ -1493,12 +1518,12 @@ async fn cmd_list_plugins(w: WebviewWindow) -> Result<Vec<Plugin>, String> {
 }
 
 #[tauri::command]
-async fn cmd_reload_plugins(
-    app_handle: AppHandle,
+async fn cmd_reload_plugins<R: Runtime>(
+    window: WebviewWindow<R>,
     plugin_manager: State<'_, PluginManager>,
 ) -> Result<(), String> {
     plugin_manager
-        .initialize_all_plugins(&app_handle)
+        .initialize_all_plugins(window.app_handle(), WindowContext::from_window(&window))
         .await
         .map_err(|e| e.to_string())?;
     Ok(())
@@ -1828,10 +1853,6 @@ pub fn run() {
             let grpc_handle = GrpcHandle::new(&app.app_handle());
             app.manage(Mutex::new(grpc_handle));
 
-            // Plugin template callback
-            let plugin_cb = PluginTemplateCallback::new(app.app_handle().clone());
-            app.manage(plugin_cb);
-
             monitor_plugin_events(&app.app_handle().clone());
 
             Ok(())
@@ -2143,6 +2164,7 @@ async fn handle_plugin_event<R: Runtime>(
     plugin_handle: &PluginHandle,
 ) {
     // info!("Got event to app {}", event.id);
+    let window_context = event.window_context.to_owned();
     let response_event: Option<InternalEventPayload> = match event.clone().payload {
         InternalEventPayload::CopyTextRequest(req) => {
             app_handle
@@ -2152,9 +2174,14 @@ async fn handle_plugin_event<R: Runtime>(
             None
         }
         InternalEventPayload::ShowToastRequest(req) => {
-            app_handle
-                .emit("show_toast", req)
-                .expect("Failed to emit show_toast");
+            match window_context {
+                WindowContext::Label { label } => app_handle
+                    .emit_to(label, "show_toast", req)
+                    .expect("Failed to emit show_toast to window"),
+                _ => app_handle
+                    .emit("show_toast", req)
+                    .expect("Failed to emit show_toast"),
+            };
             None
         }
         InternalEventPayload::FindHttpResponsesRequest(req) => {
@@ -2175,33 +2202,24 @@ async fn handle_plugin_event<R: Runtime>(
                 GetHttpRequestByIdResponse { http_request },
             ))
         }
-        InternalEventPayload::RenderHttpRequestRequest(req) => {
-            let window = get_focused_window_no_lock(app_handle).expect("No focused window");
-            let workspace = get_workspace(app_handle, req.http_request.workspace_id.as_str())
-                .await
-                .expect("Failed to get workspace for request");
+        InternalEventPayload::TemplateRenderRequest(req) => {
+            let window = get_window_from_window_context(app_handle, &window_context)
+                .expect("Failed to find window");
 
-            let url = window.url().unwrap();
-            let mut query_pairs = url.query_pairs();
-            let environment_id = query_pairs
-                .find(|(k, _v)| k == "environment_id")
-                .map(|(_k, v)| v.to_string());
-            let environment = match environment_id {
-                None => None,
-                Some(id) => get_environment(&window, id.as_str()).await.ok(),
-            };
-            let cb = &*app_handle.state::<PluginTemplateCallback>();
-            let rendered_http_request =
-                render_http_request(&req.http_request, &workspace, environment.as_ref(), cb).await;
-            Some(InternalEventPayload::RenderHttpRequestResponse(
-                RenderHttpRequestResponse {
-                    http_request: rendered_http_request,
-                },
+            let workspace = workspace_from_window(&window)
+                .await
+                .expect("Failed to get workspace_id from window URL");
+            let environment = environment_from_window(&window).await;
+            let cb = PluginTemplateCallback::new(app_handle, &window_context, req.purpose);
+            let data = render_json_value(req.data, &workspace, environment.as_ref(), &cb).await;
+            Some(InternalEventPayload::TemplateRenderResponse(
+                TemplateRenderResponse { data },
             ))
         }
         InternalEventPayload::ReloadResponse => {
-            let window = get_focused_window_no_lock(app_handle).expect("No focused window");
-            let plugins = list_plugins(&window).await.unwrap();
+            let window = get_window_from_window_context(app_handle, &window_context)
+                .expect("Failed to find window");
+            let plugins = list_plugins(app_handle).await.unwrap();
             for plugin in plugins {
                 if plugin.directory != plugin_handle.dir {
                     continue;
@@ -2214,6 +2232,7 @@ async fn handle_plugin_event<R: Runtime>(
                 upsert_plugin(&window, new_plugin).await.unwrap();
             }
             let toast_event = plugin_handle.build_event_to_send(
+                WindowContext::from_window(&window),
                 &InternalEventPayload::ShowToastRequest(ShowToastRequest {
                     message: format!("Reloaded plugin {}", plugin_handle.dir),
                     icon: Some(Icon::Info),
@@ -2225,32 +2244,17 @@ async fn handle_plugin_event<R: Runtime>(
             None
         }
         InternalEventPayload::SendHttpRequestRequest(req) => {
-            let w = get_focused_window_no_lock(app_handle).expect("No focused window");
-            let url = w.url().unwrap();
-            let mut query_pairs = url.query_pairs();
+            let window = get_window_from_window_context(app_handle, &window_context)
+                .expect("Failed to find window");
+            let cookie_jar = cookie_jar_from_window(&window).await;
+            let environment = environment_from_window(&window).await;
 
-            let cookie_jar_id = query_pairs
-                .find(|(k, _v)| k == "cookie_jar_id")
-                .map(|(_k, v)| v.to_string());
-            let cookie_jar = match cookie_jar_id {
-                None => None,
-                Some(id) => get_cookie_jar(app_handle, id.as_str()).await.ok(),
-            };
-
-            let environment_id = query_pairs
-                .find(|(k, _v)| k == "environment_id")
-                .map(|(_k, v)| v.to_string());
-            let environment = match environment_id {
-                None => None,
-                Some(id) => get_environment(app_handle, id.as_str()).await.ok(),
-            };
-
-            let resp = create_default_http_response(&w, req.http_request.id.as_str())
+            let resp = create_default_http_response(&window, req.http_request.id.as_str())
                 .await
                 .unwrap();
 
             let result = send_http_request(
-                &w,
+                &window,
                 &req.http_request,
                 &resp,
                 environment,
@@ -2279,29 +2283,66 @@ async fn handle_plugin_event<R: Runtime>(
     }
 }
 
-// app_handle.get_focused_window locks, so this one is a non-locking version, safe for use in async context
-fn get_focused_window_no_lock<R: Runtime>(app_handle: &AppHandle<R>) -> Option<WebviewWindow<R>> {
-    // TODO: Getting the focused window doesn't seem to work on Windows, so
-    //   we'll need to pass the window label into plugin events instead.
-    let main_windows = app_handle
-        .webview_windows()
-        .iter()
-        .filter_map(|(_, w)| {
-            if w.label().starts_with(MAIN_WINDOW_PREFIX) {
-                Some(w.to_owned())
-            } else {
-                None
-            }
-        })
-        .collect::<Vec<WebviewWindow<R>>>();
+fn get_window_from_window_context<R: Runtime>(
+    app_handle: &AppHandle<R>,
+    window_context: &WindowContext,
+) -> Option<WebviewWindow<R>> {
+    let label = match window_context {
+        WindowContext::None => return None,
+        WindowContext::Label { label } => label,
+    };
 
-    if main_windows.len() == 1 {
-        return main_windows.iter().next().map(|w| w.clone());
-    }
-
-    main_windows
-        .iter()
-        .cloned()
-        .find(|w| w.is_focused().unwrap_or(false))
-        .map(|w| w.clone())
+    app_handle.webview_windows().iter().find_map(|(_, w)| {
+        if w.label() == label {
+            Some(w.to_owned())
+        } else {
+            None
+        }
+    })
+}
+
+fn workspace_id_from_window<R: Runtime>(window: &WebviewWindow<R>) -> Option<String> {
+    let url = window.url().unwrap();
+    let re = Regex::new(r"/workspaces/(?<wid>\w+)").unwrap();
+    match re.captures(url.as_str()) {
+        None => None,
+        Some(captures) => captures.name("wid").map(|c| c.as_str().to_string()),
+    }
+}
+
+async fn workspace_from_window<R: Runtime>(window: &WebviewWindow<R>) -> Option<Workspace> {
+    match workspace_id_from_window(&window) {
+        None => None,
+        Some(id) => get_workspace(window, id.as_str()).await.ok(),
+    }
+}
+
+fn environment_id_from_window<R: Runtime>(window: &WebviewWindow<R>) -> Option<String> {
+    let url = window.url().unwrap();
+    let mut query_pairs = url.query_pairs();
+    query_pairs
+        .find(|(k, _v)| k == "environment_id")
+        .map(|(_k, v)| v.to_string())
+}
+
+async fn environment_from_window<R: Runtime>(window: &WebviewWindow<R>) -> Option<Environment> {
+    match environment_id_from_window(&window) {
+        None => None,
+        Some(id) => get_environment(window, id.as_str()).await.ok(),
+    }
+}
+
+fn cookie_jar_id_from_window<R: Runtime>(window: &WebviewWindow<R>) -> Option<String> {
+    let url = window.url().unwrap();
+    let mut query_pairs = url.query_pairs();
+    query_pairs
+        .find(|(k, _v)| k == "cookie_jar_id")
+        .map(|(_k, v)| v.to_string())
+}
+
+async fn cookie_jar_from_window<R: Runtime>(window: &WebviewWindow<R>) -> Option<CookieJar> {
+    match cookie_jar_id_from_window(&window) {
+        None => None,
+        Some(id) => get_cookie_jar(window, id.as_str()).await.ok(),
+    }
 }
diff --git a/src-tauri/src/notifications.rs b/src-tauri/src/notifications.rs
index 25ed8e9b..8848e53d 100644
--- a/src-tauri/src/notifications.rs
+++ b/src-tauri/src/notifications.rs
@@ -51,7 +51,7 @@ impl YaakNotifier {
         Ok(())
     }
 
-    pub async fn check<R: Runtime>(&mut self, w: &WebviewWindow<R>) -> Result<(), String> {
+    pub async fn check<R: Runtime>(&mut self, window: &WebviewWindow<R>) -> Result<(), String> {
         let ignore_check = self.last_check.elapsed().unwrap().as_secs() < MAX_UPDATE_CHECK_SECONDS;
 
         if ignore_check {
@@ -60,8 +60,8 @@ impl YaakNotifier {
 
         self.last_check = SystemTime::now();
 
-        let num_launches = get_num_launches(w).await;
-        let info = w.app_handle().package_info().clone();
+        let num_launches = get_num_launches(window).await;
+        let info = window.app_handle().package_info().clone();
         let req = reqwest::Client::default()
             .request(Method::GET, "https://notify.yaak.app/notifications")
             .query(&[
@@ -80,14 +80,14 @@ impl YaakNotifier {
             .map_err(|e| e.to_string())?;
 
         let age = notification.timestamp.signed_duration_since(Utc::now());
-        let seen = get_kv(w).await?;
+        let seen = get_kv(window).await?;
         if seen.contains(&notification.id) || (age > Duration::days(2)) {
             debug!("Already seen notification {}", notification.id);
             return Ok(());
         }
         debug!("Got notification {:?}", notification);
 
-        let _ = w.emit("notification", notification.clone());
+        let _ = window.emit_to(window.label(), "notification", notification.clone());
 
         Ok(())
     }
diff --git a/src-tauri/src/render.rs b/src-tauri/src/render.rs
index ae002599..21c3a91b 100644
--- a/src-tauri/src/render.rs
+++ b/src-tauri/src/render.rs
@@ -1,31 +1,38 @@
 use crate::template_callback::PluginTemplateCallback;
 use serde_json::{json, Map, Value};
 use std::collections::{BTreeMap, HashMap};
-use tauri::{AppHandle, Manager, Runtime};
 use yaak_models::models::{
     Environment, EnvironmentVariable, GrpcMetadataEntry, GrpcRequest, HttpRequest,
     HttpRequestHeader, HttpUrlParameter, Workspace,
 };
 use yaak_templates::{parse_and_render, TemplateCallback};
 
-pub async fn render_template<R: Runtime>(
-    app_handle: &AppHandle<R>,
+pub async fn render_template<T: TemplateCallback>(
     template: &str,
     w: &Workspace,
     e: Option<&Environment>,
+    cb: &T,
 ) -> String {
-    let cb = &*app_handle.state::<PluginTemplateCallback>();
     let vars = &make_vars_hashmap(w, e);
     render(template, vars, cb).await
 }
 
-pub async fn render_grpc_request<R: Runtime>(
-    app_handle: &AppHandle<R>,
+pub async fn render_json_value<T: TemplateCallback>(
+    value: Value,
+    w: &Workspace,
+    e: Option<&Environment>,
+    cb: &T,
+) -> Value {
+    let vars = &make_vars_hashmap(w, e);
+    render_json_value_raw(value, vars, cb).await
+}
+
+pub async fn render_grpc_request<T: TemplateCallback>(
     r: &GrpcRequest,
     w: &Workspace,
     e: Option<&Environment>,
+    cb: &T,
 ) -> GrpcRequest {
-    let cb = &*app_handle.state::<PluginTemplateCallback>();
     let vars = &make_vars_hashmap(w, e);
 
     let mut metadata = Vec::new();
@@ -39,7 +46,7 @@ pub async fn render_grpc_request<R: Runtime>(
 
     let mut authentication = BTreeMap::new();
     for (k, v) in r.authentication.clone() {
-        authentication.insert(k, render_json_value(v, vars, cb).await);
+        authentication.insert(k, render_json_value_raw(v, vars, cb).await);
     }
 
     let url = render(r.url.as_str(), vars, cb).await;
@@ -80,12 +87,12 @@ pub async fn render_http_request(
 
     let mut body = BTreeMap::new();
     for (k, v) in r.body.clone() {
-        body.insert(k, render_json_value(v, vars, cb).await);
+        body.insert(k, render_json_value_raw(v, vars, cb).await);
     }
 
     let mut authentication = BTreeMap::new();
     for (k, v) in r.authentication.clone() {
-        authentication.insert(k, render_json_value(v, vars, cb).await);
+        authentication.insert(k, render_json_value_raw(v, vars, cb).await);
     }
 
     let url = render(r.url.clone().as_str(), vars, cb).await;
@@ -138,7 +145,7 @@ fn add_variable_to_map(
     map
 }
 
-pub async fn render_json_value<T: TemplateCallback>(
+async fn render_json_value_raw<T: TemplateCallback>(
     v: Value,
     vars: &HashMap<String, String>,
     cb: &T,
@@ -148,7 +155,7 @@ pub async fn render_json_value<T: TemplateCallback>(
         Value::Array(a) => {
             let mut new_a = Vec::new();
             for v in a {
-                new_a.push(Box::pin(render_json_value(v, vars, cb)).await)
+                new_a.push(Box::pin(render_json_value_raw(v, vars, cb)).await)
             }
             json!(new_a)
         }
@@ -156,7 +163,7 @@ pub async fn render_json_value<T: TemplateCallback>(
             let mut new_o = Map::new();
             for (k, v) in o {
                 let key = Box::pin(render(k.as_str(), vars, cb)).await;
-                let value = Box::pin(render_json_value(v, vars, cb)).await;
+                let value = Box::pin(render_json_value_raw(v, vars, cb)).await;
                 new_o.insert(key, value);
             }
             json!(new_o)
@@ -189,7 +196,7 @@ mod tests {
         let mut vars = HashMap::new();
         vars.insert("a".to_string(), "aaa".to_string());
 
-        let result = super::render_json_value(v, &vars, &EmptyCB {}).await;
+        let result = super::render_json_value_raw(v, &vars, &EmptyCB {}).await;
         assert_eq!(result, json!("aaa"))
     }
 
@@ -199,7 +206,7 @@ mod tests {
         let mut vars = HashMap::new();
         vars.insert("a".to_string(), "aaa".to_string());
 
-        let result = super::render_json_value(v, &vars, &EmptyCB {}).await;
+        let result = super::render_json_value_raw(v, &vars, &EmptyCB {}).await;
         assert_eq!(result, json!(["aaa", "aaa"]))
     }
 
@@ -209,7 +216,7 @@ mod tests {
         let mut vars = HashMap::new();
         vars.insert("a".to_string(), "aaa".to_string());
 
-        let result = super::render_json_value(v, &vars, &EmptyCB {}).await;
+        let result = super::render_json_value_raw(v, &vars, &EmptyCB {}).await;
         assert_eq!(result, json!({"aaa": "aaa"}))
     }
 
@@ -226,7 +233,7 @@ mod tests {
         let mut vars = HashMap::new();
         vars.insert("a".to_string(), "aaa".to_string());
 
-        let result = super::render_json_value(v, &vars, &EmptyCB {}).await;
+        let result = super::render_json_value_raw(v, &vars, &EmptyCB {}).await;
         assert_eq!(
             result,
             json!([
diff --git a/src-tauri/src/template_callback.rs b/src-tauri/src/template_callback.rs
index d797d2eb..7e054215 100644
--- a/src-tauri/src/template_callback.rs
+++ b/src-tauri/src/template_callback.rs
@@ -1,32 +1,34 @@
 use std::collections::HashMap;
-use tauri::{AppHandle, Manager};
-use yaak_plugin_runtime::events::{RenderPurpose, TemplateFunctionArg};
+use tauri::{AppHandle, Manager, Runtime};
+use yaak_plugin_runtime::events::{RenderPurpose, TemplateFunctionArg, WindowContext};
 use yaak_plugin_runtime::manager::PluginManager;
 use yaak_templates::TemplateCallback;
 
 #[derive(Clone)]
 pub struct PluginTemplateCallback {
-    app_handle: AppHandle,
-    purpose: RenderPurpose,
+    plugin_manager: PluginManager,
+    window_context: WindowContext,
+    render_purpose: RenderPurpose,
 }
 
 impl PluginTemplateCallback {
-    pub fn new(app_handle: AppHandle) -> PluginTemplateCallback {
+    pub fn new<R: Runtime>(
+        app_handle: &AppHandle<R>,
+        window_context: &WindowContext,
+        render_purpose: RenderPurpose,
+    ) -> PluginTemplateCallback {
+        let plugin_manager = &*app_handle.state::<PluginManager>();
         PluginTemplateCallback {
-            app_handle,
-            purpose: RenderPurpose::Preview,
+            plugin_manager: plugin_manager.to_owned(),
+            window_context: window_context.to_owned(),
+            render_purpose,
         }
     }
-
-    pub fn for_send(&self) -> PluginTemplateCallback {
-        let mut v = self.clone();
-        v.purpose = RenderPurpose::Send;
-        v
-    }
 }
 
 impl TemplateCallback for PluginTemplateCallback {
     async fn run(&self, fn_name: &str, args: HashMap<String, String>) -> Result<String, String> {
+        let window_context = self.window_context.to_owned();
         // The beta named the function `Response` but was changed in stable.
         // Keep this here for a while because there's no easy way to migrate
         let fn_name = if fn_name == "Response" {
@@ -35,9 +37,9 @@ impl TemplateCallback for PluginTemplateCallback {
             fn_name
         };
 
-        let plugin_manager = self.app_handle.state::<PluginManager>();
-        let function = plugin_manager
-            .get_template_functions()
+        let function = self
+            .plugin_manager
+            .get_template_functions_with_context(window_context.to_owned())
             .await
             .map_err(|e| e.to_string())?
             .iter()
@@ -60,8 +62,14 @@ impl TemplateCallback for PluginTemplateCallback {
             }
         }
 
-        let resp = plugin_manager
-            .call_template_function(fn_name, args_with_defaults, self.purpose.clone())
+        let resp = self
+            .plugin_manager
+            .call_template_function(
+                window_context,
+                fn_name,
+                args_with_defaults,
+                self.render_purpose.to_owned(),
+            )
             .await
             .map_err(|e| e.to_string())?;
         Ok(resp.unwrap_or_default())
diff --git a/src-tauri/vendored/plugins/exporter-curl/package.json b/src-tauri/vendored/plugins/exporter-curl/package.json
index 809db666..60ae346b 100644
--- a/src-tauri/vendored/plugins/exporter-curl/package.json
+++ b/src-tauri/vendored/plugins/exporter-curl/package.json
@@ -3,15 +3,7 @@
   "private": true,
   "version": "0.0.1",
   "scripts": {
-    "build": "yaakcli build ./src/index.js"
-  },
-  "dependencies": {
-    "@yaakapp/api": "^0.2.9"
-  },
-  "devDependencies": {
-    "@types/node": "^20.14.9",
-    "typescript": "^5.5.2",
-    "vitest": "^1.4.0",
-    "@yaakapp/cli": "^0.0.42"
+    "build": "yaakcli build ./src/index.js",
+    "dev": "yaakcli dev ./src/index.js"
   }
 }
diff --git a/src-tauri/vendored/plugins/filter-jsonpath/package.json b/src-tauri/vendored/plugins/filter-jsonpath/package.json
index ad8cf0f6..80115b31 100644
--- a/src-tauri/vendored/plugins/filter-jsonpath/package.json
+++ b/src-tauri/vendored/plugins/filter-jsonpath/package.json
@@ -3,15 +3,13 @@
   "private": true,
   "version": "0.0.1",
   "scripts": {
-    "build": "yaakcli build ./src/index.ts"
+    "build": "yaakcli build ./src/index.ts",
+    "dev": "yaakcli dev ./src/index.js"
   },
   "dependencies": {
-    "jsonpath-plus": "^9.0.0",
-    "@yaakapp/api": "^0.2.9"
+    "jsonpath-plus": "^9.0.0"
   },
   "devDependencies": {
-    "@yaakapp/cli": "^0.0.42",
-    "@types/node": "^20.14.9",
-    "typescript": "^5.5.2"
+    "@types/jsonpath": "^0.2.4"
   }
 }
diff --git a/src-tauri/vendored/plugins/filter-xpath/package.json b/src-tauri/vendored/plugins/filter-xpath/package.json
index ef4325d8..89b9e26d 100644
--- a/src-tauri/vendored/plugins/filter-xpath/package.json
+++ b/src-tauri/vendored/plugins/filter-xpath/package.json
@@ -3,16 +3,11 @@
   "private": true,
   "version": "0.0.1",
   "scripts": {
-    "build": "yaakcli build ./src/index.js"
+    "build": "yaakcli build ./src/index.js",
+    "dev": "yaakcli dev ./src/index.js"
   },
   "dependencies": {
-    "@yaakapp/api": "^0.2.9",
     "@xmldom/xmldom": "^0.8.10",
     "xpath": "^0.0.34"
-  },
-  "devDependencies": {
-    "@yaakapp/cli": "^0.0.42",
-    "@types/node": "^20.14.9",
-    "typescript": "^5.5.2"
   }
 }
diff --git a/src-tauri/vendored/plugins/importer-curl/package.json b/src-tauri/vendored/plugins/importer-curl/package.json
index 188ade07..154ebf56 100644
--- a/src-tauri/vendored/plugins/importer-curl/package.json
+++ b/src-tauri/vendored/plugins/importer-curl/package.json
@@ -3,17 +3,10 @@
   "private": true,
   "version": "0.0.1",
   "scripts": {
-    "build": "yaakcli build ./src/index.js"
+    "build": "yaakcli build ./src/index.js",
+    "dev": "yaakcli dev ./src/index.js"
   },
   "dependencies": {
-    "@yaakapp/api": "^0.2.9",
     "shell-quote": "^1.8.1"
-  },
-  "devDependencies": {
-    "@yaakapp/cli": "^0.0.42",
-    "@types/node": "^20.14.9",
-    "@types/shell-quote": "^1.7.5",
-    "typescript": "^5.5.2",
-    "vitest": "^1.4.0"
   }
 }
diff --git a/src-tauri/vendored/plugins/importer-insomnia/package.json b/src-tauri/vendored/plugins/importer-insomnia/package.json
index 44e8317e..18b80f09 100644
--- a/src-tauri/vendored/plugins/importer-insomnia/package.json
+++ b/src-tauri/vendored/plugins/importer-insomnia/package.json
@@ -3,15 +3,10 @@
   "private": true,
   "version": "0.0.1",
   "scripts": {
-    "build": "yaakcli build ./src/index.js"
+    "build": "yaakcli build ./src/index.js",
+    "dev": "yaakcli dev ./src/index.js"
   },
   "dependencies": {
-    "@yaakapp/api": "^0.2.9",
     "yaml": "^2.4.2"
-  },
-  "devDependencies": {
-    "@yaakapp/cli": "^0.0.42",
-    "@types/node": "^20.14.9",
-    "typescript": "^5.5.2"
   }
 }
diff --git a/src-tauri/vendored/plugins/importer-openapi/package.json b/src-tauri/vendored/plugins/importer-openapi/package.json
index e2382fa1..575b0433 100644
--- a/src-tauri/vendored/plugins/importer-openapi/package.json
+++ b/src-tauri/vendored/plugins/importer-openapi/package.json
@@ -3,17 +3,11 @@
   "private": true,
   "version": "0.0.1",
   "scripts": {
-    "build": "yaakcli build ./src/index.js"
+    "build": "yaakcli build ./src/index.js",
+    "dev": "yaakcli dev ./src/index.js"
   },
   "dependencies": {
-    "@yaakapp/api": "^0.2.9",
     "openapi-to-postmanv2": "^4.23.1",
     "yaml": "^2.4.2"
-  },
-  "devDependencies": {
-    "@yaakapp/cli": "^0.0.42",
-    "@types/node": "^20.14.9",
-    "@types/openapi-to-postmanv2": "^3.2.4",
-    "typescript": "^5.5.2"
   }
 }
diff --git a/src-tauri/vendored/plugins/importer-postman/package.json b/src-tauri/vendored/plugins/importer-postman/package.json
index 087b1fa2..a2b5d02a 100644
--- a/src-tauri/vendored/plugins/importer-postman/package.json
+++ b/src-tauri/vendored/plugins/importer-postman/package.json
@@ -4,16 +4,7 @@
   "version": "0.0.1",
   "main": "./build/index.js",
   "scripts": {
-    "build": "yaakcli build ./src/index.js"
-  },
-  "dependencies": {
-    "@yaakapp/api": "^0.2.9"
-  },
-  "devDependencies": {
-    "@yaakapp/cli": "^0.0.42",
-    "@types/node": "^20.14.9",
-    "esbuild": "^0.21.5",
-    "typescript": "^5.5.2",
-    "vitest": "^1.4.0"
+    "build": "yaakcli build ./src/index.js",
+    "dev": "yaakcli dev ./src/index.js"
   }
 }
diff --git a/src-tauri/vendored/plugins/importer-yaak/package.json b/src-tauri/vendored/plugins/importer-yaak/package.json
index 3fd9d53e..e44fbae5 100644
--- a/src-tauri/vendored/plugins/importer-yaak/package.json
+++ b/src-tauri/vendored/plugins/importer-yaak/package.json
@@ -3,15 +3,7 @@
   "private": true,
   "version": "0.0.1",
   "scripts": {
-    "build": "yaakcli build ./src/index.js"
-  },
-  "dependencies": {
-    "@yaakapp/api": "^0.2.9"
-  },
-  "devDependencies": {
-    "@yaakapp/cli": "^0.0.42",
-    "@types/node": "^20.14.9",
-    "esbuild": "^0.21.5",
-    "typescript": "^5.5.2"
+    "build": "yaakcli build ./src/index.js",
+    "dev": "yaakcli dev ./src/index.js"
   }
 }
diff --git a/src-tauri/vendored/plugins/template-function-request/build/index.js b/src-tauri/vendored/plugins/template-function-request/build/index.js
new file mode 100644
index 00000000..7481e297
--- /dev/null
+++ b/src-tauri/vendored/plugins/template-function-request/build/index.js
@@ -0,0 +1,64 @@
+"use strict";
+var __defProp = Object.defineProperty;
+var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
+var __getOwnPropNames = Object.getOwnPropertyNames;
+var __hasOwnProp = Object.prototype.hasOwnProperty;
+var __export = (target, all) => {
+  for (var name in all)
+    __defProp(target, name, { get: all[name], enumerable: true });
+};
+var __copyProps = (to, from, except, desc) => {
+  if (from && typeof from === "object" || typeof from === "function") {
+    for (let key of __getOwnPropNames(from))
+      if (!__hasOwnProp.call(to, key) && key !== except)
+        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
+  }
+  return to;
+};
+var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
+
+// src/index.ts
+var src_exports = {};
+__export(src_exports, {
+  plugin: () => plugin
+});
+module.exports = __toCommonJS(src_exports);
+var plugin = {
+  templateFunctions: [
+    {
+      name: "request.body",
+      args: [],
+      async onRender(ctx, args) {
+        const httpRequest = await ctx.httpRequest.getById({ id: args.values.request ?? "n/a" });
+        if (httpRequest == null) return null;
+        const rendered = await ctx.httpRequest.render({ httpRequest, purpose: args.purpose });
+        return rendered.body.text ?? "";
+      }
+    },
+    {
+      name: "request.header",
+      args: [
+        {
+          name: "requestId",
+          label: "Http Request",
+          type: "http_request"
+        },
+        {
+          name: "header",
+          label: "Header Name",
+          type: "text"
+        }
+      ],
+      async onRender(ctx, args) {
+        const httpRequest = await ctx.httpRequest.getById({ id: args.values.requestId ?? "n/a" });
+        if (httpRequest == null) return null;
+        const rendered = await ctx.httpRequest.render({ httpRequest, purpose: args.purpose });
+        return rendered.headers.find((h) => h.name.toLowerCase() === args.values.header?.toLowerCase())?.value ?? "";
+      }
+    }
+  ]
+};
+// Annotate the CommonJS export names for ESM import in node:
+0 && (module.exports = {
+  plugin
+});
diff --git a/src-tauri/vendored/plugins/template-function-request/package.json b/src-tauri/vendored/plugins/template-function-request/package.json
new file mode 100755
index 00000000..021fe43e
--- /dev/null
+++ b/src-tauri/vendored/plugins/template-function-request/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "template-function-request",
+  "private": true,
+  "version": "0.0.1",
+  "scripts": {
+    "build": "yaakcli build ./src/index.ts",
+    "dev": "yaakcli dev ./src/index.js"
+  },
+  "dependencies": {
+    "jsonpath-plus": "^9.0.0",
+    "xpath": "^0.0.34",
+    "@xmldom/xmldom": "^0.8.10"
+  },
+  "devDependencies": {
+    "@types/jsonpath": "^0.2.4"
+  }
+}
diff --git a/src-tauri/vendored/plugins/template-function-response/package.json b/src-tauri/vendored/plugins/template-function-response/package.json
index 4dfc14ee..dfb064ac 100644
--- a/src-tauri/vendored/plugins/template-function-response/package.json
+++ b/src-tauri/vendored/plugins/template-function-response/package.json
@@ -3,19 +3,15 @@
   "private": true,
   "version": "0.0.1",
   "scripts": {
-    "build": "yaakcli build ./src/index.ts"
+    "build": "yaakcli build ./src/index.ts",
+    "dev": "yaakcli dev ./src/index.js"
   },
   "dependencies": {
-    "@yaakapp/api": "^0.2.9",
     "jsonpath-plus": "^9.0.0",
     "xpath": "^0.0.34",
     "@xmldom/xmldom": "^0.8.10"
   },
   "devDependencies": {
-    "@yaakapp/cli": "^0.0.42",
-    "@types/jsonpath": "^0.2.4",
-    "@types/node": "^20.14.9",
-    "typescript": "^5.5.2",
-    "vitest": "^1.4.0"
+    "@types/jsonpath": "^0.2.4"
   }
 }
diff --git a/src-tauri/yaak_plugin_runtime/bindings/events.ts b/src-tauri/yaak_plugin_runtime/bindings/events.ts
index 747c9c3f..87a677e7 100644
--- a/src-tauri/yaak_plugin_runtime/bindings/events.ts
+++ b/src-tauri/yaak_plugin_runtime/bindings/events.ts
@@ -4,6 +4,7 @@ import type { Folder } from "./models";
 import type { GrpcRequest } from "./models";
 import type { HttpRequest } from "./models";
 import type { HttpResponse } from "./models";
+import type { JsonValue } from "./serde_json/JsonValue";
 import type { Workspace } from "./models";
 
 export type BootRequest = { dir: string, watch: boolean, };
@@ -56,9 +57,9 @@ export type ImportResources = { workspaces: Array<Workspace>, environments: Arra
 
 export type ImportResponse = { resources: ImportResources, };
 
-export type InternalEvent = { id: string, pluginRefId: string, replyId: string | null, payload: InternalEventPayload, };
+export type InternalEvent = { id: string, pluginRefId: string, replyId: string | null, payload: InternalEventPayload, windowContext: WindowContext, };
 
-export type InternalEventPayload = { "type": "boot_request" } & BootRequest | { "type": "boot_response" } & BootResponse | { "type": "reload_request" } | { "type": "reload_response" } | { "type": "terminate_request" } | { "type": "terminate_response" } | { "type": "import_request" } & ImportRequest | { "type": "import_response" } & ImportResponse | { "type": "filter_request" } & FilterRequest | { "type": "filter_response" } & FilterResponse | { "type": "export_http_request_request" } & ExportHttpRequestRequest | { "type": "export_http_request_response" } & ExportHttpRequestResponse | { "type": "send_http_request_request" } & SendHttpRequestRequest | { "type": "send_http_request_response" } & SendHttpRequestResponse | { "type": "get_http_request_actions_request" } & GetHttpRequestActionsRequest | { "type": "get_http_request_actions_response" } & GetHttpRequestActionsResponse | { "type": "call_http_request_action_request" } & CallHttpRequestActionRequest | { "type": "get_template_functions_request" } | { "type": "get_template_functions_response" } & GetTemplateFunctionsResponse | { "type": "call_template_function_request" } & CallTemplateFunctionRequest | { "type": "call_template_function_response" } & CallTemplateFunctionResponse | { "type": "copy_text_request" } & CopyTextRequest | { "type": "render_http_request_request" } & RenderHttpRequestRequest | { "type": "render_http_request_response" } & RenderHttpRequestResponse | { "type": "show_toast_request" } & ShowToastRequest | { "type": "get_http_request_by_id_request" } & GetHttpRequestByIdRequest | { "type": "get_http_request_by_id_response" } & GetHttpRequestByIdResponse | { "type": "find_http_responses_request" } & FindHttpResponsesRequest | { "type": "find_http_responses_response" } & FindHttpResponsesResponse | { "type": "empty_response" };
+export type InternalEventPayload = { "type": "boot_request" } & BootRequest | { "type": "boot_response" } & BootResponse | { "type": "reload_request" } | { "type": "reload_response" } | { "type": "terminate_request" } | { "type": "terminate_response" } | { "type": "import_request" } & ImportRequest | { "type": "import_response" } & ImportResponse | { "type": "filter_request" } & FilterRequest | { "type": "filter_response" } & FilterResponse | { "type": "export_http_request_request" } & ExportHttpRequestRequest | { "type": "export_http_request_response" } & ExportHttpRequestResponse | { "type": "send_http_request_request" } & SendHttpRequestRequest | { "type": "send_http_request_response" } & SendHttpRequestResponse | { "type": "get_http_request_actions_request" } & GetHttpRequestActionsRequest | { "type": "get_http_request_actions_response" } & GetHttpRequestActionsResponse | { "type": "call_http_request_action_request" } & CallHttpRequestActionRequest | { "type": "get_template_functions_request" } | { "type": "get_template_functions_response" } & GetTemplateFunctionsResponse | { "type": "call_template_function_request" } & CallTemplateFunctionRequest | { "type": "call_template_function_response" } & CallTemplateFunctionResponse | { "type": "copy_text_request" } & CopyTextRequest | { "type": "template_render_request" } & TemplateRenderRequest | { "type": "template_render_response" } & TemplateRenderResponse | { "type": "show_toast_request" } & ShowToastRequest | { "type": "get_http_request_by_id_request" } & GetHttpRequestByIdRequest | { "type": "get_http_request_by_id_response" } & GetHttpRequestByIdResponse | { "type": "find_http_responses_request" } & FindHttpResponsesRequest | { "type": "find_http_responses_response" } & FindHttpResponsesResponse | { "type": "empty_response" };
 
 export type RenderHttpRequestRequest = { httpRequest: HttpRequest, purpose: RenderPurpose, };
 
@@ -87,3 +88,9 @@ export type TemplateFunctionSelectArg = { options: Array<TemplateFunctionSelectO
 export type TemplateFunctionSelectOption = { name: string, value: string, };
 
 export type TemplateFunctionTextArg = { placeholder?: string | null, name: string, optional?: boolean | null, label?: string | null, defaultValue?: string | null, };
+
+export type TemplateRenderRequest = { data: JsonValue, purpose: RenderPurpose, };
+
+export type TemplateRenderResponse = { data: JsonValue, };
+
+export type WindowContext = { "type": "none" } | { "type": "label", label: string, };
diff --git a/src-tauri/yaak_plugin_runtime/bindings/serde_json/JsonValue.ts b/src-tauri/yaak_plugin_runtime/bindings/serde_json/JsonValue.ts
new file mode 100644
index 00000000..606bac7a
--- /dev/null
+++ b/src-tauri/yaak_plugin_runtime/bindings/serde_json/JsonValue.ts
@@ -0,0 +1,3 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+export type JsonValue = number | string | Array<JsonValue> | { [key in string]?: JsonValue };
diff --git a/src-tauri/yaak_plugin_runtime/src/events.rs b/src-tauri/yaak_plugin_runtime/src/events.rs
index 0562454e..6be6c3ca 100644
--- a/src-tauri/yaak_plugin_runtime/src/events.rs
+++ b/src-tauri/yaak_plugin_runtime/src/events.rs
@@ -1,25 +1,40 @@
 use serde::{Deserialize, Serialize};
 use std::collections::HashMap;
+use tauri::{Runtime, WebviewWindow};
 use ts_rs::TS;
 
-use yaak_models::models::{
-    Environment, Folder, GrpcRequest, HttpRequest,
-    HttpResponse, Workspace,
-};
+use yaak_models::models::{Environment, Folder, GrpcRequest, HttpRequest, HttpResponse, Workspace};
 
 #[derive(Debug, Clone, Serialize, Deserialize, TS)]
 #[serde(rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct InternalEvent {
     pub id: String,
     pub plugin_ref_id: String,
     pub reply_id: Option<String>,
     pub payload: InternalEventPayload,
+    pub window_context: WindowContext,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize, TS)]
 #[serde(rename_all = "snake_case", tag = "type")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
+pub enum WindowContext {
+    None,
+    Label { label: String },
+}
+
+impl WindowContext {
+    pub fn from_window<R: Runtime>(window: &WebviewWindow<R>) -> Self {
+        Self::Label {
+            label: window.label().to_string(),
+        }
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, TS)]
+#[serde(rename_all = "snake_case", tag = "type")]
+#[ts(export, export_to = "events.ts")]
 pub enum InternalEventPayload {
     BootRequest(BootRequest),
     BootResponse(BootResponse),
@@ -53,8 +68,8 @@ pub enum InternalEventPayload {
 
     CopyTextRequest(CopyTextRequest),
 
-    RenderHttpRequestRequest(RenderHttpRequestRequest),
-    RenderHttpRequestResponse(RenderHttpRequestResponse),
+    TemplateRenderRequest(TemplateRenderRequest),
+    TemplateRenderResponse(TemplateRenderResponse),
 
     ShowToastRequest(ShowToastRequest),
 
@@ -71,7 +86,7 @@ pub enum InternalEventPayload {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct BootRequest {
     pub dir: String,
     pub watch: bool,
@@ -79,7 +94,7 @@ pub struct BootRequest {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct BootResponse {
     pub name: String,
     pub version: String,
@@ -88,21 +103,21 @@ pub struct BootResponse {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct ImportRequest {
     pub content: String,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct ImportResponse {
     pub resources: ImportResources,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct FilterRequest {
     pub content: String,
     pub filter: String,
@@ -110,49 +125,49 @@ pub struct FilterRequest {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct FilterResponse {
     pub content: String,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct ExportHttpRequestRequest {
     pub http_request: HttpRequest,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct ExportHttpRequestResponse {
     pub content: String,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct SendHttpRequestRequest {
     pub http_request: HttpRequest,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct SendHttpRequestResponse {
     pub http_response: HttpResponse,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct CopyTextRequest {
     pub text: String,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct RenderHttpRequestRequest {
     pub http_request: HttpRequest,
     pub purpose: RenderPurpose,
@@ -160,14 +175,29 @@ pub struct RenderHttpRequestRequest {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct RenderHttpRequestResponse {
     pub http_request: HttpRequest,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
+pub struct TemplateRenderRequest {
+    pub data: serde_json::Value,
+    pub purpose: RenderPurpose,
+}
+
+#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
+#[serde(default, rename_all = "camelCase")]
+#[ts(export, export_to = "events.ts")]
+pub struct TemplateRenderResponse {
+    pub data: serde_json::Value,
+}
+
+#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
+#[serde(default, rename_all = "camelCase")]
+#[ts(export, export_to = "events.ts")]
 pub struct ShowToastRequest {
     pub message: String,
     #[ts(optional = nullable)]
@@ -178,7 +208,7 @@ pub struct ShowToastRequest {
 
 #[derive(Debug, Clone, Serialize, Deserialize, TS)]
 #[serde(rename_all = "snake_case")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub enum Color {
     Custom,
     Default,
@@ -199,7 +229,7 @@ impl Default for Color {
 
 #[derive(Debug, Clone, Serialize, Deserialize, TS)]
 #[serde(rename_all = "snake_case")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub enum Icon {
     Copy,
     Info,
@@ -209,7 +239,7 @@ pub enum Icon {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct GetTemplateFunctionsResponse {
     pub functions: Vec<TemplateFunction>,
     pub plugin_ref_id: String,
@@ -217,7 +247,7 @@ pub struct GetTemplateFunctionsResponse {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct TemplateFunction {
     pub name: String,
     pub args: Vec<TemplateFunctionArg>,
@@ -225,7 +255,7 @@ pub struct TemplateFunction {
 
 #[derive(Debug, Clone, Serialize, Deserialize, TS)]
 #[serde(rename_all = "snake_case", tag = "type")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub enum TemplateFunctionArg {
     Text(TemplateFunctionTextArg),
     Select(TemplateFunctionSelectArg),
@@ -235,7 +265,7 @@ pub enum TemplateFunctionArg {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct TemplateFunctionBaseArg {
     pub name: String,
     #[ts(optional = nullable)]
@@ -248,7 +278,7 @@ pub struct TemplateFunctionBaseArg {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct TemplateFunctionTextArg {
     #[serde(flatten)]
     pub base: TemplateFunctionBaseArg,
@@ -258,7 +288,7 @@ pub struct TemplateFunctionTextArg {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct TemplateFunctionHttpRequestArg {
     #[serde(flatten)]
     pub base: TemplateFunctionBaseArg,
@@ -266,7 +296,7 @@ pub struct TemplateFunctionHttpRequestArg {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct TemplateFunctionSelectArg {
     #[serde(flatten)]
     pub base: TemplateFunctionBaseArg,
@@ -275,7 +305,7 @@ pub struct TemplateFunctionSelectArg {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct TemplateFunctionCheckboxArg {
     #[serde(flatten)]
     pub base: TemplateFunctionBaseArg,
@@ -283,7 +313,7 @@ pub struct TemplateFunctionCheckboxArg {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct TemplateFunctionSelectOption {
     pub name: String,
     pub value: String,
@@ -291,7 +321,7 @@ pub struct TemplateFunctionSelectOption {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct CallTemplateFunctionRequest {
     pub name: String,
     pub args: CallTemplateFunctionArgs,
@@ -299,14 +329,14 @@ pub struct CallTemplateFunctionRequest {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct CallTemplateFunctionResponse {
     pub value: Option<String>,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct CallTemplateFunctionArgs {
     pub purpose: RenderPurpose,
     pub values: HashMap<String, String>,
@@ -314,7 +344,7 @@ pub struct CallTemplateFunctionArgs {
 
 #[derive(Debug, Clone, Serialize, Deserialize, TS)]
 #[serde(rename_all = "snake_case")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub enum RenderPurpose {
     Send,
     Preview,
@@ -328,12 +358,12 @@ impl Default for RenderPurpose {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default)]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct GetHttpRequestActionsRequest {}
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct GetHttpRequestActionsResponse {
     pub actions: Vec<HttpRequestAction>,
     pub plugin_ref_id: String,
@@ -341,7 +371,7 @@ pub struct GetHttpRequestActionsResponse {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct HttpRequestAction {
     pub key: String,
     pub label: String,
@@ -350,7 +380,7 @@ pub struct HttpRequestAction {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct CallHttpRequestActionRequest {
     pub key: String,
     pub plugin_ref_id: String,
@@ -359,28 +389,28 @@ pub struct CallHttpRequestActionRequest {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct CallHttpRequestActionArgs {
     pub http_request: HttpRequest,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct GetHttpRequestByIdRequest {
     pub id: String,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct GetHttpRequestByIdResponse {
     pub http_request: Option<HttpRequest>,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct FindHttpResponsesRequest {
     pub request_id: String,
     pub limit: Option<i32>,
@@ -388,14 +418,14 @@ pub struct FindHttpResponsesRequest {
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct FindHttpResponsesResponse {
     pub http_responses: Vec<HttpResponse>,
 }
 
 #[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
 #[serde(default, rename_all = "camelCase")]
-#[ts(export, export_to="events.ts")]
+#[ts(export, export_to = "events.ts")]
 pub struct ImportResources {
     pub workspaces: Vec<Workspace>,
     pub environments: Vec<Environment>,
diff --git a/src-tauri/yaak_plugin_runtime/src/manager.rs b/src-tauri/yaak_plugin_runtime/src/manager.rs
index 4d51f899..f6e888a2 100644
--- a/src-tauri/yaak_plugin_runtime/src/manager.rs
+++ b/src-tauri/yaak_plugin_runtime/src/manager.rs
@@ -5,6 +5,7 @@ use crate::events::{
     CallTemplateFunctionRequest, CallTemplateFunctionResponse, FilterRequest, FilterResponse,
     GetHttpRequestActionsRequest, GetHttpRequestActionsResponse, GetTemplateFunctionsResponse,
     ImportRequest, ImportResponse, InternalEvent, InternalEventPayload, RenderPurpose,
+    WindowContext,
 };
 use crate::nodejs::start_nodejs_plugin_runtime;
 use crate::plugin_handle::PluginHandle;
@@ -17,7 +18,7 @@ use std::path::PathBuf;
 use std::sync::Arc;
 use std::time::Duration;
 use tauri::path::BaseDirectory;
-use tauri::{AppHandle, Manager, Runtime};
+use tauri::{AppHandle, Manager, Runtime, WebviewWindow};
 use tokio::fs::read_dir;
 use tokio::net::TcpListener;
 use tokio::sync::{mpsc, Mutex};
@@ -98,7 +99,7 @@ impl PluginManager {
                     Ok(_) => {
                         info!("Plugin runtime client connected!");
                         plugin_manager
-                            .initialize_all_plugins(&app_handle)
+                            .initialize_all_plugins(&app_handle, WindowContext::None)
                             .await
                             .expect("Failed to reload plugins");
                     }
@@ -171,17 +172,21 @@ impl PluginManager {
         [bundled_plugin_dirs, installed_plugin_dirs].concat()
     }
 
-    pub async fn uninstall(&self, dir: &str) -> Result<()> {
+    pub async fn uninstall(&self, window_context: WindowContext, dir: &str) -> Result<()> {
         let plugin = self
             .get_plugin_by_dir(dir)
             .await
             .ok_or(PluginNotFoundErr(dir.to_string()))?;
-        self.remove_plugin(&plugin).await
+        self.remove_plugin(window_context, &plugin).await
     }
 
-    async fn remove_plugin(&self, plugin: &PluginHandle) -> Result<()> {
+    async fn remove_plugin(
+        &self,
+        window_context: WindowContext,
+        plugin: &PluginHandle,
+    ) -> Result<()> {
         // Terminate the plugin
-        plugin.terminate().await?;
+        plugin.terminate(window_context).await?;
 
         // Remove the plugin from the list
         let mut plugins = self.plugins.lock().await;
@@ -193,7 +198,12 @@ impl PluginManager {
         Ok(())
     }
 
-    pub async fn add_plugin_by_dir(&self, dir: &str, watch: bool) -> Result<()> {
+    pub async fn add_plugin_by_dir(
+        &self,
+        window_context: WindowContext,
+        dir: &str,
+        watch: bool,
+    ) -> Result<()> {
         info!("Adding plugin by dir {dir}");
         let maybe_tx = self.server.app_to_plugin_events_tx.lock().await;
         let tx = match &*maybe_tx {
@@ -202,9 +212,13 @@ impl PluginManager {
         };
         let plugin_handle = PluginHandle::new(dir, tx.clone());
 
+        // Add the new plugin 
+        self.plugins.lock().await.push(plugin_handle.clone());
+
         // Boot the plugin
         let event = self
             .send_to_plugin_and_wait(
+                window_context,
                 &plugin_handle,
                 &InternalEventPayload::BootRequest(BootRequest {
                     dir: dir.to_string(),
@@ -218,27 +232,29 @@ impl PluginManager {
             _ => return Err(UnknownEventErr),
         };
 
+        // Set the boot response
         plugin_handle.set_boot_response(&resp).await;
 
-        // Add the new plugin after it boots
-        self.plugins.lock().await.push(plugin_handle.clone());
-
         Ok(())
     }
 
     pub async fn initialize_all_plugins<R: Runtime>(
         &self,
         app_handle: &AppHandle<R>,
+        window_context: WindowContext,
     ) -> Result<()> {
         let dirs = self.list_plugin_dirs(app_handle).await;
         for d in dirs.clone() {
             // First remove the plugin if it exists
             if let Some(plugin) = self.get_plugin_by_dir(d.dir.as_str()).await {
-                if let Err(e) = self.remove_plugin(&plugin).await {
+                if let Err(e) = self.remove_plugin(window_context.to_owned(), &plugin).await {
                     warn!("Failed to remove plugin {} {e:?}", d.dir);
                 }
             }
-            if let Err(e) = self.add_plugin_by_dir(d.dir.as_str(), d.watch).await {
+            if let Err(e) = self
+                .add_plugin_by_dir(window_context.to_owned(), d.dir.as_str(), d.watch)
+                .await
+            {
                 warn!("Failed to add plugin {} {e:?}", d.dir);
             }
         }
@@ -280,12 +296,13 @@ impl PluginManager {
         source_event: &InternalEvent,
         payload: &InternalEventPayload,
     ) -> Result<()> {
-        let reply_id = Some(source_event.clone().id);
+        let window_label = source_event.to_owned().window_context;
+        let reply_id = Some(source_event.to_owned().id);
         let plugin = self
             .get_plugin_by_ref_id(source_event.plugin_ref_id.as_str())
             .await
             .ok_or(PluginNotFoundErr(source_event.plugin_ref_id.to_string()))?;
-        let event = plugin.build_event_to_send(&payload, reply_id);
+        let event = plugin.build_event_to_send_raw(window_label, &payload, reply_id);
         plugin.send(&event).await
     }
 
@@ -319,22 +336,29 @@ impl PluginManager {
 
     async fn send_to_plugin_and_wait(
         &self,
+        window_context: WindowContext,
         plugin: &PluginHandle,
         payload: &InternalEventPayload,
     ) -> Result<InternalEvent> {
         let events = self
-            .send_to_plugins_and_wait(payload, vec![plugin.to_owned()])
+            .send_to_plugins_and_wait(window_context, payload, vec![plugin.to_owned()])
             .await?;
         Ok(events.first().unwrap().to_owned())
     }
 
-    async fn send_and_wait(&self, payload: &InternalEventPayload) -> Result<Vec<InternalEvent>> {
+    async fn send_and_wait(
+        &self,
+        window_context: WindowContext,
+        payload: &InternalEventPayload,
+    ) -> Result<Vec<InternalEvent>> {
         let plugins = { self.plugins.lock().await.clone() };
-        self.send_to_plugins_and_wait(payload, plugins).await
+        self.send_to_plugins_and_wait(window_context, payload, plugins)
+            .await
     }
 
     async fn send_to_plugins_and_wait(
         &self,
+        window_context: WindowContext,
         payload: &InternalEventPayload,
         plugins: Vec<PluginHandle>,
     ) -> Result<Vec<InternalEvent>> {
@@ -343,7 +367,7 @@ impl PluginManager {
         // 1. Build the events with IDs and everything
         let events_to_send = plugins
             .iter()
-            .map(|p| p.build_event_to_send(payload, None))
+            .map(|p| p.build_event_to_send(window_context.to_owned(), payload, None))
             .collect::<Vec<InternalEvent>>();
 
         // 2. Spawn thread to subscribe to incoming events and check reply ids
@@ -388,11 +412,17 @@ impl PluginManager {
         Ok(events)
     }
 
-    pub async fn get_http_request_actions(&self) -> Result<Vec<GetHttpRequestActionsResponse>> {
+    pub async fn get_http_request_actions<R: Runtime>(
+        &self,
+        window: &WebviewWindow<R>,
+    ) -> Result<Vec<GetHttpRequestActionsResponse>> {
         let reply_events = self
-            .send_and_wait(&InternalEventPayload::GetHttpRequestActionsRequest(
-                GetHttpRequestActionsRequest {},
-            ))
+            .send_and_wait(
+                WindowContext::from_window(window),
+                &InternalEventPayload::GetHttpRequestActionsRequest(
+                    GetHttpRequestActionsRequest {},
+                ),
+            )
             .await?;
 
         let mut all_actions = Vec::new();
@@ -405,9 +435,23 @@ impl PluginManager {
         Ok(all_actions)
     }
 
-    pub async fn get_template_functions(&self) -> Result<Vec<GetTemplateFunctionsResponse>> {
+    pub async fn get_template_functions<R: Runtime>(
+        &self,
+        window: &WebviewWindow<R>,
+    ) -> Result<Vec<GetTemplateFunctionsResponse>> {
+        self.get_template_functions_with_context(WindowContext::from_window(window))
+            .await
+    }
+
+    pub async fn get_template_functions_with_context(
+        &self,
+        window_context: WindowContext,
+    ) -> Result<Vec<GetTemplateFunctionsResponse>> {
         let reply_events = self
-            .send_and_wait(&InternalEventPayload::GetTemplateFunctionsRequest)
+            .send_and_wait(
+                window_context,
+                &InternalEventPayload::GetTemplateFunctionsRequest,
+            )
             .await?;
 
         let mut all_actions = Vec::new();
@@ -420,13 +464,18 @@ impl PluginManager {
         Ok(all_actions)
     }
 
-    pub async fn call_http_request_action(&self, req: CallHttpRequestActionRequest) -> Result<()> {
+    pub async fn call_http_request_action<R: Runtime>(
+        &self,
+        window: &WebviewWindow<R>,
+        req: CallHttpRequestActionRequest,
+    ) -> Result<()> {
         let ref_id = req.plugin_ref_id.clone();
         let plugin = self
             .get_plugin_by_ref_id(ref_id.as_str())
             .await
             .ok_or(PluginNotFoundErr(ref_id))?;
         let event = plugin.build_event_to_send(
+            WindowContext::from_window(window),
             &InternalEventPayload::CallHttpRequestActionRequest(req),
             None,
         );
@@ -436,6 +485,7 @@ impl PluginManager {
 
     pub async fn call_template_function(
         &self,
+        window_context: WindowContext,
         fn_name: &str,
         args: HashMap<String, String>,
         purpose: RenderPurpose,
@@ -449,7 +499,10 @@ impl PluginManager {
         };
 
         let events = self
-            .send_and_wait(&InternalEventPayload::CallTemplateFunctionRequest(req))
+            .send_and_wait(
+                window_context,
+                &InternalEventPayload::CallTemplateFunctionRequest(req),
+            )
             .await?;
 
         let value = events.into_iter().find_map(|e| match e.payload {
@@ -462,11 +515,18 @@ impl PluginManager {
         Ok(value)
     }
 
-    pub async fn import_data(&self, content: &str) -> Result<(ImportResponse, String)> {
+    pub async fn import_data<R: Runtime>(
+        &self,
+        window: &WebviewWindow<R>,
+        content: &str,
+    ) -> Result<(ImportResponse, String)> {
         let reply_events = self
-            .send_and_wait(&InternalEventPayload::ImportRequest(ImportRequest {
-                content: content.to_string(),
-            }))
+            .send_and_wait(
+                WindowContext::from_window(window),
+                &InternalEventPayload::ImportRequest(ImportRequest {
+                    content: content.to_string(),
+                }),
+            )
             .await?;
 
         // TODO: Don't just return the first valid response
@@ -489,8 +549,9 @@ impl PluginManager {
         }
     }
 
-    pub async fn filter_data(
+    pub async fn filter_data<R: Runtime>(
         &self,
+        window: &WebviewWindow<R>,
         filter: &str,
         content: &str,
         content_type: &str,
@@ -508,6 +569,7 @@ impl PluginManager {
 
         let event = self
             .send_to_plugin_and_wait(
+                WindowContext::from_window(window),
                 &plugin,
                 &InternalEventPayload::FilterRequest(FilterRequest {
                     filter: filter.to_string(),
diff --git a/src-tauri/yaak_plugin_runtime/src/plugin.rs b/src-tauri/yaak_plugin_runtime/src/plugin.rs
index 811b79f2..86f3a23e 100644
--- a/src-tauri/yaak_plugin_runtime/src/plugin.rs
+++ b/src-tauri/yaak_plugin_runtime/src/plugin.rs
@@ -26,4 +26,4 @@ pub fn init<R: Runtime>() -> TauriPlugin<R> {
             _ => {}
         })
         .build()
-}
\ No newline at end of file
+}
diff --git a/src-tauri/yaak_plugin_runtime/src/plugin_handle.rs b/src-tauri/yaak_plugin_runtime/src/plugin_handle.rs
index a85e4740..c9eb637e 100644
--- a/src-tauri/yaak_plugin_runtime/src/plugin_handle.rs
+++ b/src-tauri/yaak_plugin_runtime/src/plugin_handle.rs
@@ -1,9 +1,9 @@
 use crate::error::Result;
-use crate::events::{BootResponse, InternalEvent, InternalEventPayload};
+use crate::events::{BootResponse, InternalEvent, InternalEventPayload, WindowContext};
 use crate::server::plugin_runtime::EventStreamEvent;
 use crate::util::gen_id;
-use std::sync::Arc;
 use log::info;
+use std::sync::Arc;
 use tokio::sync::{mpsc, Mutex};
 
 #[derive(Clone)]
@@ -33,6 +33,16 @@ impl PluginHandle {
 
     pub fn build_event_to_send(
         &self,
+        window_context: WindowContext,
+        payload: &InternalEventPayload,
+        reply_id: Option<String>,
+    ) -> InternalEvent {
+        self.build_event_to_send_raw(window_context, payload, reply_id)
+    }
+
+    pub(crate) fn build_event_to_send_raw(
+        &self,
+        window_context: WindowContext,
         payload: &InternalEventPayload,
         reply_id: Option<String>,
     ) -> InternalEvent {
@@ -41,16 +51,21 @@ impl PluginHandle {
             plugin_ref_id: self.ref_id.clone(),
             reply_id,
             payload: payload.clone(),
+            window_context,
         }
     }
 
-    pub async fn terminate(&self) -> Result<()> {
+    pub async fn terminate(&self, window_context: WindowContext) -> Result<()> {
         info!("Terminating plugin {}", self.dir);
-        let event = self.build_event_to_send(&InternalEventPayload::TerminateRequest, None);
+        let event = self.build_event_to_send(
+            window_context,
+            &InternalEventPayload::TerminateRequest,
+            None,
+        );
         self.send(&event).await
     }
 
-    pub async fn send(&self, event: &InternalEvent) -> Result<()> {
+    pub(crate) async fn send(&self, event: &InternalEvent) -> Result<()> {
         self.to_plugin_tx
             .lock()
             .await
@@ -61,15 +76,6 @@ impl PluginHandle {
         Ok(())
     }
 
-    pub async fn send_payload(
-        &self,
-        payload: &InternalEventPayload,
-        reply_id: Option<String>,
-    ) -> Result<()> {
-        let event = self.build_event_to_send(payload, reply_id);
-        self.send(&event).await
-    }
-
     pub async fn set_boot_response(&self, resp: &BootResponse) {
         let mut boot_resp = self.boot_resp.lock().await;
         *boot_resp = resp.clone();
diff --git a/src-tauri/yaak_templates/src/renderer.rs b/src-tauri/yaak_templates/src/renderer.rs
index 8b4679c2..0ff24045 100644
--- a/src-tauri/yaak_templates/src/renderer.rs
+++ b/src-tauri/yaak_templates/src/renderer.rs
@@ -50,7 +50,7 @@ async fn render_tag<T: TemplateCallback>(
             Some(v) => {
                 let r = Box::pin(parse_and_render(v, vars, cb)).await;
                 r.to_string()
-            },
+            }
             None => "".into(),
         },
         Val::Bool { value } => value.to_string(),
diff --git a/src-web/hooks/useListenToTauriEvent.ts b/src-web/hooks/useListenToTauriEvent.ts
index 9e42ccf7..b5b51509 100644
--- a/src-web/hooks/useListenToTauriEvent.ts
+++ b/src-web/hooks/useListenToTauriEvent.ts
@@ -1,5 +1,6 @@
-import type { EventCallback, EventName, Options } from '@tauri-apps/api/event';
+import type { EventCallback, EventName } from '@tauri-apps/api/event';
 import { listen } from '@tauri-apps/api/event';
+import { getCurrentWebviewWindow } from '@tauri-apps/api/webviewWindow';
 import type { DependencyList } from 'react';
 import { useEffect } from 'react';
 
@@ -9,14 +10,18 @@ import { useEffect } from 'react';
 export function useListenToTauriEvent<T>(
   event: EventName,
   fn: EventCallback<T>,
-  options: Options | undefined = undefined,
   deps: DependencyList = [],
 ) {
   useEffect(() => {
     let unMounted = false;
     let unsubFn: (() => void) | undefined = undefined;
 
-    listen(event, fn, options).then((unsub) => {
+    listen(
+      event,
+      fn,
+      // Listen to `emit_all()` events or events specific to the current window
+      { target: { label: getCurrentWebviewWindow().label, kind: 'Window' } },
+    ).then((unsub) => {
       if (unMounted) unsub();
       else unsubFn = unsub;
     });