diff --git a/docs/maps/api-ui.md b/docs/maps/api-ui.md
index 286f2ac7..89d46932 100644
--- a/docs/maps/api-ui.md
+++ b/docs/maps/api-ui.md
@@ -86,4 +86,51 @@ WA.ui.registerMenuCommand("test", () => {
 
 <div class="col">
     <img src="https://workadventu.re/img/docs/menu-command.png" class="figure-img img-fluid rounded" alt="" />
-</div>
\ No newline at end of file
+</div>
+
+
+
+### Awaiting User Confirmation (with space bar)
+
+```
+WA.ui.displayActionMessage({
+    message: string,
+    callback: () => void,
+    type?: "message"|"warning",
+}): ActionMessage
+```
+
+Displays a message at the bottom of the screen (that will disappear when space bar is pressed).
+
+<div class="col">
+    <img src="https://workadventu.re/img/docs/trigger_message.png" class="figure-img img-fluid rounded" alt="" />
+</div>
+
+Example:
+
+```javascript
+const triggerMessage = WA.ui.displayActionMessage({
+    message: "press 'space' to confirm",
+    callback: () => {
+        WA.chat.sendChatMessage("confirmed", "trigger message logic")
+    }
+});
+
+setTimeout(() => {
+    // later
+    triggerMessage.remove();
+}, 1000)
+```
+
+Please note that `displayActionMessage` returns an object of the `ActionMessage` class.
+
+The `ActionMessage` class contains a single method: `remove(): Promise<void>`. This will obviously remove the message when called.
+
+```javascript
+class ActionMessage {
+    /**
+     * Hides the message
+     */
+    remove() {};
+}
+```
diff --git a/front/.eslintrc.json b/front/.eslintrc.json
index 037fddae..45b44456 100644
--- a/front/.eslintrc.json
+++ b/front/.eslintrc.json
@@ -26,7 +26,6 @@
     "rules": {
         "no-unused-vars": "off",
         "@typescript-eslint/no-explicit-any": "error",
-
         // TODO: remove those ignored rules and write a stronger code!
         "@typescript-eslint/no-floating-promises": "off",
         "@typescript-eslint/no-unsafe-call": "off",
diff --git a/front/src/Api/Events/IframeEvent.ts b/front/src/Api/Events/IframeEvent.ts
index 0590939b..ca1d9cc3 100644
--- a/front/src/Api/Events/IframeEvent.ts
+++ b/front/src/Api/Events/IframeEvent.ts
@@ -9,6 +9,7 @@ import type { OpenCoWebSiteEvent } from "./OpenCoWebSiteEvent";
 import type { OpenPopupEvent } from "./OpenPopupEvent";
 import type { OpenTabEvent } from "./OpenTabEvent";
 import type { UserInputChatEvent } from "./UserInputChatEvent";
+import type { MapDataEvent } from "./MapDataEvent";
 import type { LayerEvent } from "./LayerEvent";
 import type { SetPropertyEvent } from "./setPropertyEvent";
 import type { LoadSoundEvent } from "./LoadSoundEvent";
@@ -23,6 +24,13 @@ import { isMapDataEvent } from "./MapDataEvent";
 import { isSetVariableEvent } from "./SetVariableEvent";
 import type { LoadTilesetEvent } from "./LoadTilesetEvent";
 import { isLoadTilesetEvent } from "./LoadTilesetEvent";
+import type {
+    MessageReferenceEvent,
+    removeActionMessage,
+    triggerActionMessage,
+    TriggerActionMessageEvent,
+} from "./ui/TriggerActionMessageEvent";
+import { isMessageReferenceEvent, isTriggerActionMessageEvent } from "./ui/TriggerActionMessageEvent";
 
 export interface TypedMessageEvent<T> extends MessageEvent {
     data: T;
@@ -73,6 +81,7 @@ export interface IframeResponseEventMap {
     hasPlayerMoved: HasPlayerMovedEvent;
     menuItemClicked: MenuItemClickedEvent;
     setVariable: SetVariableEvent;
+    messageTriggered: MessageReferenceEvent;
 }
 export interface IframeResponseEvent<T extends keyof IframeResponseEventMap> {
     type: T;
@@ -105,6 +114,14 @@ export const iframeQueryMapTypeGuards = {
         query: isLoadTilesetEvent,
         answer: tg.isNumber,
     },
+    triggerActionMessage: {
+        query: isTriggerActionMessageEvent,
+        answer: tg.isUndefined,
+    },
+    removeActionMessage: {
+        query: isMessageReferenceEvent,
+        answer: tg.isUndefined,
+    },
 };
 
 type GuardedType<T> = T extends (x: unknown) => x is infer T ? T : never;
diff --git a/front/src/Api/Events/ui/TriggerActionMessageEvent.ts b/front/src/Api/Events/ui/TriggerActionMessageEvent.ts
new file mode 100644
index 00000000..48f1cae6
--- /dev/null
+++ b/front/src/Api/Events/ui/TriggerActionMessageEvent.ts
@@ -0,0 +1,26 @@
+import * as tg from "generic-type-guard";
+
+export const triggerActionMessage = "triggerActionMessage";
+export const removeActionMessage = "removeActionMessage";
+
+export const isActionMessageType = tg.isSingletonStringUnion("message", "warning");
+
+export type ActionMessageType = tg.GuardedType<typeof isActionMessageType>;
+
+export const isTriggerActionMessageEvent = new tg.IsInterface()
+    .withProperties({
+        message: tg.isString,
+        uuid: tg.isString,
+        type: isActionMessageType,
+    })
+    .get();
+
+export type TriggerActionMessageEvent = tg.GuardedType<typeof isTriggerActionMessageEvent>;
+
+export const isMessageReferenceEvent = new tg.IsInterface()
+    .withProperties({
+        uuid: tg.isString,
+    })
+    .get();
+
+export type MessageReferenceEvent = tg.GuardedType<typeof isMessageReferenceEvent>;
diff --git a/front/src/Api/Events/ui/TriggerMessageEventHandler.ts b/front/src/Api/Events/ui/TriggerMessageEventHandler.ts
new file mode 100644
index 00000000..fb64c742
--- /dev/null
+++ b/front/src/Api/Events/ui/TriggerMessageEventHandler.ts
@@ -0,0 +1,24 @@
+import {
+    isMessageReferenceEvent,
+    isTriggerActionMessageEvent,
+    removeActionMessage,
+    triggerActionMessage,
+} from './TriggerActionMessageEvent';
+
+import * as tg from 'generic-type-guard';
+
+const isTriggerMessageEventObject = new tg.IsInterface()
+    .withProperties({
+        type: tg.isSingletonString(triggerActionMessage),
+        data: isTriggerActionMessageEvent,
+    })
+    .get();
+
+const isTriggerMessageRemoveEventObject = new tg.IsInterface()
+    .withProperties({
+        type: tg.isSingletonString(removeActionMessage),
+        data: isMessageReferenceEvent,
+    })
+    .get();
+
+export const isTriggerMessageHandlerEvent = tg.isUnion(isTriggerMessageEventObject, isTriggerMessageRemoveEventObject);
diff --git a/front/src/Api/IframeListener.ts b/front/src/Api/IframeListener.ts
index d9286ef0..2ed65f15 100644
--- a/front/src/Api/IframeListener.ts
+++ b/front/src/Api/IframeListener.ts
@@ -1,4 +1,5 @@
 import { Subject } from "rxjs";
+import type * as tg from "generic-type-guard";
 import { ChatEvent, isChatEvent } from "./Events/ChatEvent";
 import { HtmlUtils } from "../WebRtc/HtmlUtils";
 import type { EnterLeaveEvent } from "./Events/EnterLeaveEvent";
@@ -121,7 +122,7 @@ class IframeListener {
     init() {
         window.addEventListener(
             "message",
-            (message: TypedMessageEvent<IframeEvent<keyof IframeEventMap>>) => {
+            (message: MessageEvent<unknown>) => {
                 // Do we trust the sender of this message?
                 // Let's only accept messages from the iframe that are allowed.
                 // Note: maybe we could restrict on the domain too for additional security (in case the iframe goes to another domain).
@@ -416,6 +417,15 @@ class IframeListener {
         });
     }
 
+    sendActionMessageTriggered(uuid: string): void {
+        this.postMessage({
+            type: "messageTriggered",
+            data: {
+                uuid,
+            },
+        });
+    }
+
     /**
      * Sends the message... to all allowed iframes.
      */
diff --git a/front/src/Api/iframe/IframeApiContribution.ts b/front/src/Api/iframe/IframeApiContribution.ts
index e4ba089e..96548d5e 100644
--- a/front/src/Api/iframe/IframeApiContribution.ts
+++ b/front/src/Api/iframe/IframeApiContribution.ts
@@ -1,51 +1,66 @@
 import type * as tg from "generic-type-guard";
 import type {
     IframeEvent,
-    IframeEventMap, IframeQuery,
+    IframeEventMap,
+    IframeQuery,
     IframeQueryMap,
-    IframeResponseEventMap
-} from '../Events/IframeEvent';
-import type {IframeQueryWrapper} from "../Events/IframeEvent";
+    IframeResponseEventMap,
+} from "../Events/IframeEvent";
+import type { IframeQueryWrapper } from "../Events/IframeEvent";
 
 export function sendToWorkadventure(content: IframeEvent<keyof IframeEventMap>) {
-    window.parent.postMessage(content, "*")
+    window.parent.postMessage(content, "*");
 }
 
 let queryNumber = 0;
 
-export const answerPromises = new Map<number, {
-    resolve: (value: (IframeQueryMap[keyof IframeQueryMap]['answer'] | PromiseLike<IframeQueryMap[keyof IframeQueryMap]['answer']>)) => void,
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    reject: (reason?: any) => void
-}>();
+export const answerPromises = new Map<
+    number,
+    {
+        resolve: (
+            value:
+                | IframeQueryMap[keyof IframeQueryMap]["answer"]
+                | PromiseLike<IframeQueryMap[keyof IframeQueryMap]["answer"]>
+        ) => void;
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        reject: (reason?: any) => void;
+    }
+>();
 
-export function queryWorkadventure<T extends keyof IframeQueryMap>(content: IframeQuery<T>): Promise<IframeQueryMap[T]['answer']> {
-    return new Promise<IframeQueryMap[T]['answer']>((resolve, reject) => {
-        window.parent.postMessage({
-            id: queryNumber,
-            query: content
-        } as IframeQueryWrapper<T>, "*");
+export function queryWorkadventure<T extends keyof IframeQueryMap>(
+    content: IframeQuery<T>
+): Promise<IframeQueryMap[T]["answer"]> {
+    return new Promise<IframeQueryMap[T]["answer"]>((resolve, reject) => {
+        window.parent.postMessage(
+            {
+                id: queryNumber,
+                query: content,
+            } as IframeQueryWrapper<T>,
+            "*"
+        );
 
         answerPromises.set(queryNumber, {
             resolve,
-            reject
+            reject,
         });
 
         queryNumber++;
     });
 }
 
-type GuardedType<Guard extends tg.TypeGuard<unknown>> = Guard extends tg.TypeGuard<infer T> ? T : never
+type GuardedType<Guard extends tg.TypeGuard<unknown>> = Guard extends tg.TypeGuard<infer T> ? T : never;
 
-export interface IframeCallback<Key extends keyof IframeResponseEventMap, T = IframeResponseEventMap[Key], Guard = tg.TypeGuard<T>> {
-
-    typeChecker: Guard,
-    callback: (payloadData: T) => void
+export interface IframeCallback<
+    Key extends keyof IframeResponseEventMap,
+    T = IframeResponseEventMap[Key],
+    Guard = tg.TypeGuard<T>
+> {
+    typeChecker: Guard;
+    callback: (payloadData: T) => void;
 }
 
 export interface IframeCallbackContribution<Key extends keyof IframeResponseEventMap> extends IframeCallback<Key> {
-
-    type: Key
+    type: Key;
 }
 
 /**
@@ -54,9 +69,10 @@ export interface IframeCallbackContribution<Key extends keyof IframeResponseEven
  *
  */
 
-export abstract class IframeApiContribution<T extends {
-    callbacks: Array<IframeCallbackContribution<keyof IframeResponseEventMap>>,
-}> {
-
-    abstract callbacks: T["callbacks"]
+export abstract class IframeApiContribution<
+    T extends {
+        callbacks: Array<IframeCallbackContribution<keyof IframeResponseEventMap>>;
+    }
+> {
+    abstract callbacks: T["callbacks"];
 }
diff --git a/front/src/Api/iframe/Ui/ActionMessage.ts b/front/src/Api/iframe/Ui/ActionMessage.ts
new file mode 100644
index 00000000..912603b9
--- /dev/null
+++ b/front/src/Api/iframe/Ui/ActionMessage.ts
@@ -0,0 +1,56 @@
+import {
+    ActionMessageType,
+    MessageReferenceEvent,
+    removeActionMessage,
+    triggerActionMessage,
+    TriggerActionMessageEvent,
+} from "../../Events/ui/TriggerActionMessageEvent";
+import { queryWorkadventure } from "../IframeApiContribution";
+import type { ActionMessageOptions } from "../ui";
+function uuidv4() {
+    return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (c) => {
+        const r = (Math.random() * 16) | 0,
+            v = c === "x" ? r : (r & 0x3) | 0x8;
+        return v.toString(16);
+    });
+}
+
+export class ActionMessage {
+    public readonly uuid: string;
+    private readonly type: ActionMessageType;
+    private readonly message: string;
+    private readonly callback: () => void;
+
+    constructor(actionMessageOptions: ActionMessageOptions, private onRemove: () => void) {
+        this.uuid = uuidv4();
+        this.message = actionMessageOptions.message;
+        this.type = actionMessageOptions.type ?? "message";
+        this.callback = actionMessageOptions.callback;
+        this.create();
+    }
+
+    private async create() {
+        await queryWorkadventure({
+            type: triggerActionMessage,
+            data: {
+                message: this.message,
+                type: this.type,
+                uuid: this.uuid,
+            } as TriggerActionMessageEvent,
+        });
+    }
+
+    async remove() {
+        await queryWorkadventure({
+            type: removeActionMessage,
+            data: {
+                uuid: this.uuid,
+            } as MessageReferenceEvent,
+        });
+        this.onRemove();
+    }
+
+    triggerCallback() {
+        this.callback();
+    }
+}
diff --git a/front/src/Api/iframe/ui.ts b/front/src/Api/iframe/ui.ts
index 61c7076e..ab5b2007 100644
--- a/front/src/Api/iframe/ui.ts
+++ b/front/src/Api/iframe/ui.ts
@@ -1,10 +1,11 @@
 import { isButtonClickedEvent } from "../Events/ButtonClickedEvent";
 import { isMenuItemClickedEvent } from "../Events/ui/MenuItemClickedEvent";
-import type { MenuItemRegisterEvent } from "../Events/ui/MenuItemRegisterEvent";
 import { IframeApiContribution, sendToWorkadventure } from "./IframeApiContribution";
 import { apiCallback } from "./registeredCallbacks";
 import type { ButtonClickedCallback, ButtonDescriptor } from "./Ui/ButtonDescriptor";
 import { Popup } from "./Ui/Popup";
+import { ActionMessage } from "./Ui/ActionMessage";
+import { isMessageReferenceEvent } from "../Events/ui/TriggerActionMessageEvent";
 
 let popupId = 0;
 const popups: Map<number, Popup> = new Map<number, Popup>();
@@ -14,6 +15,7 @@ const popupCallbacks: Map<number, Map<number, ButtonClickedCallback>> = new Map<
 >();
 
 const menuCallbacks: Map<string, (command: string) => void> = new Map();
+const actionMessages = new Map<string, ActionMessage>();
 
 interface ZonedPopupOptions {
     zone: string;
@@ -23,6 +25,12 @@ interface ZonedPopupOptions {
     popupOptions: Array<ButtonDescriptor>;
 }
 
+export interface ActionMessageOptions {
+    message: string;
+    type?: "message" | "warning";
+    callback: () => void;
+}
+
 export class WorkAdventureUiCommands extends IframeApiContribution<WorkAdventureUiCommands> {
     callbacks = [
         apiCallback({
@@ -49,6 +57,16 @@ export class WorkAdventureUiCommands extends IframeApiContribution<WorkAdventure
                 }
             },
         }),
+        apiCallback({
+            type: "messageTriggered",
+            typeChecker: isMessageReferenceEvent,
+            callback: (event) => {
+                const actionMessage = actionMessages.get(event.uuid);
+                if (actionMessage) {
+                    actionMessage.triggerCallback();
+                }
+            },
+        }),
     ];
 
     openPopup(targetObject: string, message: string, buttons: ButtonDescriptor[]): Popup {
@@ -103,6 +121,14 @@ export class WorkAdventureUiCommands extends IframeApiContribution<WorkAdventure
     removeBubble(): void {
         sendToWorkadventure({ type: "removeBubble", data: null });
     }
+
+    displayActionMessage(actionMessageOptions: ActionMessageOptions): ActionMessage {
+        const actionMessage = new ActionMessage(actionMessageOptions, () => {
+            actionMessages.delete(actionMessage.uuid);
+        });
+        actionMessages.set(actionMessage.uuid, actionMessage);
+        return actionMessage;
+    }
 }
 
 export default new WorkAdventureUiCommands();
diff --git a/front/src/Components/LayoutManager/LayoutManager.svelte b/front/src/Components/LayoutManager/LayoutManager.svelte
index ef90a4e3..5bc6e097 100644
--- a/front/src/Components/LayoutManager/LayoutManager.svelte
+++ b/front/src/Components/LayoutManager/LayoutManager.svelte
@@ -1,26 +1,5 @@
 <script lang="ts">
     import { layoutManagerActionStore } from "../../Stores/LayoutManagerStore";
-    import { onDestroy, onMount } from "svelte";
-    import { get } from "svelte/store";
-
-    onMount(() => {
-        for (const action of get(layoutManagerActionStore)) {
-            action.userInputManager?.addSpaceEventListner(action.callback);
-            if ( action.type === 'warning') {
-                //remove it after 10 sec
-                setTimeout(() => {
-                    layoutManagerActionStore.removeAction(action);
-                }, 10000)
-            }
-        }
-    })
-
-    onDestroy(() => {
-        for (const action of get(layoutManagerActionStore)) {
-            action.userInputManager?.removeSpaceEventListner(action.callback);
-        }
-        layoutManagerActionStore.clearActions();
-    })
 
     function onClick(callback: () => void) {
         callback();
@@ -75,4 +54,4 @@
   50% {bottom: 30px;}
   100% {bottom: 40px;}
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/front/src/Phaser/Game/GameScene.ts b/front/src/Phaser/Game/GameScene.ts
index 017fb1e7..0ea62a4f 100644
--- a/front/src/Phaser/Game/GameScene.ts
+++ b/front/src/Phaser/Game/GameScene.ts
@@ -86,7 +86,7 @@ import { playersStore } from "../../Stores/PlayersStore";
 import { chatVisibilityStore } from "../../Stores/ChatStore";
 import Tileset = Phaser.Tilemaps.Tileset;
 import { userIsAdminStore } from "../../Stores/GameStore";
-import { layoutManagerActionStore, layoutManagerVisibilityStore } from "../../Stores/LayoutManagerStore";
+import { layoutManagerActionStore } from "../../Stores/LayoutManagerStore";
 import { get } from "svelte/store";
 
 export interface GameSceneInitInterface {
@@ -792,7 +792,7 @@ export class GameScene extends DirtyScene {
         });
         this.gameMap.onPropertyChange("openWebsite", (newValue, oldValue, allProps) => {
             if (newValue === undefined) {
-                layoutManagerVisibilityStore.set(false);
+                layoutManagerActionStore.removeAction("openWebsite");
                 coWebsiteManager.closeCoWebsite();
             } else {
                 const openWebsiteFunction = () => {
@@ -802,7 +802,7 @@ export class GameScene extends DirtyScene {
                         allProps.get("openWebsiteAllowApi") as boolean | undefined,
                         allProps.get("openWebsitePolicy") as string | undefined
                     );
-                    layoutManagerVisibilityStore.set(false);
+                    layoutManagerActionStore.removeAction("openWebsite");
                 };
 
                 const openWebsiteTriggerValue = allProps.get(TRIGGER_WEBSITE_PROPERTIES);
@@ -812,12 +812,12 @@ export class GameScene extends DirtyScene {
                         message = "Press SPACE or touch here to open web site";
                     }
                     layoutManagerActionStore.addAction({
-                        type: "openWebsite",
+                        uuid: "openWebsite",
+                        type: "message",
                         message: message,
                         callback: () => openWebsiteFunction(),
                         userInputManager: this.userInputManager,
                     });
-                    layoutManagerVisibilityStore.set(true);
                 } else {
                     openWebsiteFunction();
                 }
@@ -825,7 +825,7 @@ export class GameScene extends DirtyScene {
         });
         this.gameMap.onPropertyChange("jitsiRoom", (newValue, oldValue, allProps) => {
             if (newValue === undefined) {
-                layoutManagerVisibilityStore.set(false);
+                layoutManagerActionStore.removeAction("jitsi");
                 this.stopJitsi();
             } else {
                 const openJitsiRoomFunction = () => {
@@ -838,7 +838,7 @@ export class GameScene extends DirtyScene {
                     } else {
                         this.startJitsi(roomName, undefined);
                     }
-                    layoutManagerVisibilityStore.set(false);
+                    layoutManagerActionStore.removeAction("jitsi");
                 };
 
                 const jitsiTriggerValue = allProps.get(TRIGGER_JITSI_PROPERTIES);
@@ -848,12 +848,12 @@ export class GameScene extends DirtyScene {
                         message = "Press SPACE or touch here to enter Jitsi Meet room";
                     }
                     layoutManagerActionStore.addAction({
-                        type: "jitsiRoom",
+                        uuid: "jitsi",
+                        type: "message",
                         message: message,
                         callback: () => openJitsiRoomFunction(),
                         userInputManager: this.userInputManager,
                     });
-                    layoutManagerVisibilityStore.set(true);
                 } else {
                     openJitsiRoomFunction();
                 }
@@ -909,7 +909,7 @@ export class GameScene extends DirtyScene {
                 let html = `<div id="container" hidden><div class="nes-container with-title is-centered">
 ${escapedMessage}
  </div> `;
-                const buttonContainer = `<div class="buttonContainer"</div>`;
+                const buttonContainer = '<div class="buttonContainer"</div>';
                 html += buttonContainer;
                 let id = 0;
                 for (const button of openPopupEvent.buttons) {
@@ -1149,6 +1149,23 @@ ${escapedMessage}
                 });
             });
         });
+
+        iframeListener.registerAnswerer("triggerActionMessage", (message) =>
+            layoutManagerActionStore.addAction({
+                uuid: message.uuid,
+                type: "message",
+                message: message.message,
+                callback: () => {
+                    layoutManagerActionStore.removeAction(message.uuid);
+                    iframeListener.sendActionMessageTriggered(message.uuid);
+                },
+                userInputManager: this.userInputManager,
+            })
+        );
+
+        iframeListener.registerAnswerer("removeActionMessage", (message) => {
+            layoutManagerActionStore.removeAction(message.uuid);
+        });
     }
 
     private setPropertyLayer(
@@ -1271,6 +1288,10 @@ ${escapedMessage}
         this.biggestAvailableAreaStoreUnsubscribe();
         iframeListener.unregisterAnswerer("getState");
         iframeListener.unregisterAnswerer("loadTileset");
+        iframeListener.unregisterAnswerer("getMapData");
+        iframeListener.unregisterAnswerer("getState");
+        iframeListener.unregisterAnswerer("triggerActionMessage");
+        iframeListener.unregisterAnswerer("removeActionMessage");
         this.sharedVariablesManager?.close();
 
         mediaManager.hideGameOverlay();
diff --git a/front/src/Stores/LayoutManagerStore.ts b/front/src/Stores/LayoutManagerStore.ts
index 41fd283d..e92cd3c4 100644
--- a/front/src/Stores/LayoutManagerStore.ts
+++ b/front/src/Stores/LayoutManagerStore.ts
@@ -1,15 +1,14 @@
-import { writable } from "svelte/store";
+import { derived, writable } from "svelte/store";
 import type { UserInputManager } from "../Phaser/UserInput/UserInputManager";
 
 export interface LayoutManagerAction {
-    type: string;
+    uuid: string;
+    type: "warning" | "message";
     message: string | number | boolean | undefined;
     callback: () => void;
     userInputManager: UserInputManager | undefined;
 }
 
-export const layoutManagerVisibilityStore = writable(false);
-
 function createLayoutManagerAction() {
     const { subscribe, set, update } = writable<LayoutManagerAction[]>([]);
 
@@ -18,26 +17,26 @@ function createLayoutManagerAction() {
         addAction: (newAction: LayoutManagerAction): void => {
             update((list: LayoutManagerAction[]) => {
                 let found = false;
-                for (const actions of list) {
-                    if (actions.type === newAction.type && actions.message === newAction.message) {
+                for (const action of list) {
+                    if (action.uuid === newAction.uuid) {
                         found = true;
                     }
                 }
 
                 if (!found) {
                     list.push(newAction);
+                    newAction.userInputManager?.addSpaceEventListner(newAction.callback);
                 }
 
                 return list;
             });
         },
-        removeAction: (oldAction: LayoutManagerAction): void => {
+        removeAction: (uuid: string): void => {
             update((list: LayoutManagerAction[]) => {
-                const index = list.findIndex(
-                    (actions) => actions.type === oldAction.type && actions.message === oldAction.message
-                );
+                const index = list.findIndex((action) => action.uuid === uuid);
 
                 if (index !== -1) {
+                    list[index].userInputManager?.removeSpaceEventListner(list[index].callback);
                     list.splice(index, 1);
                 }
 
@@ -51,3 +50,7 @@ function createLayoutManagerAction() {
 }
 
 export const layoutManagerActionStore = createLayoutManagerAction();
+
+export const layoutManagerVisibilityStore = derived(layoutManagerActionStore, ($layoutManagerActionStore) => {
+    return !!$layoutManagerActionStore.length;
+});
diff --git a/front/src/WebRtc/MediaManager.ts b/front/src/WebRtc/MediaManager.ts
index 2f8c637a..a7a73ecb 100644
--- a/front/src/WebRtc/MediaManager.ts
+++ b/front/src/WebRtc/MediaManager.ts
@@ -25,15 +25,18 @@ export class MediaManager {
             if (result.type === "error") {
                 console.error(result.error);
                 layoutManagerActionStore.addAction({
+                    uuid: "cameraAccessDenied",
                     type: "warning",
                     message: "Camera access denied. Click here and check your browser permissions.",
                     callback: () => {
                         helpCameraSettingsVisibleStore.set(true);
-                        layoutManagerVisibilityStore.set(false);
                     },
                     userInputManager: this.userInputManager,
                 });
-                layoutManagerVisibilityStore.set(true);
+                //remove it after 10 sec
+                setTimeout(() => {
+                    layoutManagerActionStore.removeAction("cameraAccessDenied");
+                }, 10000);
                 return;
             }
         });
@@ -42,15 +45,18 @@ export class MediaManager {
             if (result.type === "error") {
                 console.error(result.error);
                 layoutManagerActionStore.addAction({
+                    uuid: "screenSharingAccessDenied",
                     type: "warning",
                     message: "Screen sharing denied. Click here and check your browser permissions.",
                     callback: () => {
                         helpCameraSettingsVisibleStore.set(true);
-                        layoutManagerVisibilityStore.set(false);
                     },
                     userInputManager: this.userInputManager,
                 });
-                layoutManagerVisibilityStore.set(true);
+                //remove it after 10 sec
+                setTimeout(() => {
+                    layoutManagerActionStore.removeAction("screenSharingAccessDenied");
+                }, 10000);
                 return;
             }
         });
diff --git a/maps/tests/TriggerMessageApi/script.js b/maps/tests/TriggerMessageApi/script.js
new file mode 100644
index 00000000..9ab02ec2
--- /dev/null
+++ b/maps/tests/TriggerMessageApi/script.js
@@ -0,0 +1,16 @@
+WA.onInit().then(() => {
+    let message;
+
+    WA.room.onEnterZone("carpet", () => {
+        message = WA.ui.displayActionMessage({
+            message: "This is a test message. Press space to display a chat message. Walk out to hide the message.",
+            callback: () => {
+                WA.chat.sendChatMessage("Hello world!", "The bot");
+            }
+        });
+    });
+
+    WA.room.onLeaveZone("carpet", () => {
+        message && message.remove();
+    });
+});
diff --git a/maps/tests/TriggerMessageApi/triggerMessage.json b/maps/tests/TriggerMessageApi/triggerMessage.json
new file mode 100644
index 00000000..1e077741
--- /dev/null
+++ b/maps/tests/TriggerMessageApi/triggerMessage.json
@@ -0,0 +1,106 @@
+{ "compressionlevel":-1,
+ "height":10,
+ "infinite":false,
+ "layers":[
+        {
+         "data":[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+         "height":10,
+         "id":1,
+         "name":"floor",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":10,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+         "height":10,
+         "id":2,
+         "name":"start",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":10,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 34, 34, 0, 0, 0, 0, 0, 0, 0, 0, 34, 34, 0, 0, 0, 0, 0, 0, 0, 0, 34, 34, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+         "height":10,
+         "id":8,
+         "name":"carpet",
+         "opacity":1,
+         "properties":[
+                {
+                 "name":"zone",
+                 "type":"string",
+                 "value":"carpet"
+                }],
+         "type":"tilelayer",
+         "visible":true,
+         "width":10,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "draworder":"topdown",
+         "id":3,
+         "name":"floorLayer",
+         "objects":[
+                {
+                 "height":304.037037037037,
+                 "id":3,
+                 "name":"",
+                 "rotation":0,
+                 "text":
+                    {
+                     "fontfamily":"Sans Serif",
+                     "pixelsize":11,
+                     "text":"Test:\nWalk on the carpet\n\nResult:\nA message is displayed at the bottom of the screen\n\nTest:\nPress space\n\nResult:\nA chat message is displayed\n\n\nTest:\nWalk out of the carpet\n\nResult:\nThe message is hidden\n",
+                     "wrap":true
+                    },
+                 "type":"",
+                 "visible":true,
+                 "width":252.4375,
+                 "x":2.78125,
+                 "y":2.5
+                }],
+         "opacity":1,
+         "type":"objectgroup",
+         "visible":true,
+         "x":0,
+         "y":0
+        }],
+ "nextlayerid":9,
+ "nextobjectid":11,
+ "orientation":"orthogonal",
+ "properties":[
+        {
+         "name":"script",
+         "type":"string",
+         "value":"script.js"
+        }],
+ "renderorder":"right-down",
+ "tiledversion":"2021.03.23",
+ "tileheight":32,
+ "tilesets":[
+        {
+         "columns":11,
+         "firstgid":1,
+         "image":"..\/tileset1.png",
+         "imageheight":352,
+         "imagewidth":352,
+         "margin":0,
+         "name":"tileset1",
+         "spacing":0,
+         "tilecount":121,
+         "tileheight":32,
+         "tilewidth":32
+        }],
+ "tilewidth":32,
+ "type":"map",
+ "version":1.5,
+ "width":10
+}
\ No newline at end of file
diff --git a/maps/tests/index.html b/maps/tests/index.html
index fbff09e5..74c13891 100644
--- a/maps/tests/index.html
+++ b/maps/tests/index.html
@@ -202,6 +202,14 @@
                     <a href="#" class="testLink" data-testmap="Variables/shared_variables.json" target="_blank">Testing shared scripting variables</a>
                 </td>
             </tr>
+            <tr>
+                <td>
+                    <input type="radio" name="test-trigger-message-api"> Success <input type="radio" name="test-trigger-message-api"> Failure <input type="radio" name="test-trigger-message-api" checked> Pending
+                </td>
+                <td>
+                    <a href="#" class="testLink" data-testmap="TriggerMessageApi/triggerMessage.json" target="_blank">Testing trigger message API</a>
+                </td>
+            </tr>
         </table>
 
         <script>
diff --git a/maps/tests/script.js b/maps/tests/script.js
index b300700f..52b201d6 100644
--- a/maps/tests/script.js
+++ b/maps/tests/script.js
@@ -1,40 +1,41 @@
+///<reference path="../../front/src/iframe_api.ts" />
 console.log('SCRIPT LAUNCHED');
 //WA.sendChatMessage('Hi, my name is Poly and I repeat what you say!', 'Poly Parrot');
 var isFirstTimeTuto = false;
 var textFirstPopup = 'Hey ! This is how to open start a discussion with someone ! You can be 4 max in a booble';
 var textSecondPopup = 'You can also use the chat to communicate ! ';
-var targetObjectTutoBubble ='myPopup1';
-var targetObjectTutoChat ='myPopup2';
+var targetObjectTutoBubble = 'myPopup1';
+var targetObjectTutoChat = 'myPopup2';
 var popUpExplanation = undefined;
-function launchTuto (){
-        WA.ui.openPopup(targetObjectTutoBubble, textFirstPopup, [
-            {
-                label: "Next",
-                className: "popUpElement",
-                callback: (popup) => {
-                    popup.close();
+function launchTuto() {
+    WA.ui.openPopup(targetObjectTutoBubble, textFirstPopup, [
+        {
+            label: "Next",
+            className: "popUpElement",
+            callback: (popup) => {
+                popup.close();
 
-                    WA.ui.openPopup(targetObjectTutoChat, textSecondPopup, [
-                        {
-                            label: "Open Chat",
-                            className: "popUpElement",
-                            callback: (popup1) => {
-                                WA.chat.sendChatMessage("Hey you can talk here too ! ", 'WA Guide');
-                                popup1.close();
-                                WA.controls.restorePlayerControls();
-                            }
+                WA.ui.openPopup(targetObjectTutoChat, textSecondPopup, [
+                    {
+                        label: "Open Chat",
+                        className: "popUpElement",
+                        callback: (popup1) => {
+                            WA.chat.sendChatMessage("Hey you can talk here too ! ", 'WA Guide');
+                            popup1.close();
+                            WA.controls.restorePlayerControls();
                         }
+                    }
 
-                    ])
-                }
+                ])
             }
-        ]);
-        WA.controls.disablePlayerControls();
+        }
+    ]);
+    WA.controls.disablePlayerControls();
 
 }
 WA.chat.onChatMessage((message => {
     console.log('CHAT MESSAGE RECEIVED BY SCRIPT');
-    WA.chat.sendChatMessage('Poly Parrot says: "'+message+'"', 'Poly Parrot');
+    WA.chat.sendChatMessage('Poly Parrot says: "' + message + '"', 'Poly Parrot');
 }));
 
 WA.room.onEnterZone('myTrigger', () => {
@@ -50,11 +51,11 @@ WA.room.onEnterZone('notExist', () => {
 
 WA.room.onEnterZone('popupZone', () => {
     WA.ui.displayBubble();
-    if (!isFirstTimeTuto) {
+    if(!isFirstTimeTuto) {
         isFirstTimeTuto = true;
         launchTuto();
     }
-     else popUpExplanation =  WA.ui.openPopup(targetObjectTutoChat,'Do you want to review the explanation ? ', [
+    else popUpExplanation = WA.ui.openPopup(targetObjectTutoChat, 'Do you want to review the explanation ? ', [
         {
             label: "No",
             className: "popUpElementReviewexplanation",
@@ -74,6 +75,13 @@ WA.room.onEnterZone('popupZone', () => {
 });
 
 WA.room.onLeaveZone('popupZone', () => {
-    if (popUpExplanation !== undefined) popUpExplanation.close();
+    if(popUpExplanation !== undefined) popUpExplanation.close();
     WA.ui.removeBubble();
 })
+
+const message = WA.ui.displayActionMessage("testMessage", () => {
+    WA.chat.sendChatMessage("triggered", "triggerbot");
+})
+setTimeout(() => {
+    message.remove();
+}, 5000)
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 00000000..c5b98682
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,12 @@
+{
+  "requires": true,
+  "lockfileVersion": 1,
+  "dependencies": {
+    "husky": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/husky/-/husky-6.0.0.tgz",
+      "integrity": "sha512-SQS2gDTB7tBN486QSoKPKQItZw97BMOd+Kdb6ghfpBc0yXyzrddI0oDV5MkDAbuB4X2mO3/nj60TRMcYxwzZeQ==",
+      "dev": true
+    }
+  }
+}