diff --git a/docs/maps/api-room.md b/docs/maps/api-room.md
index 9d08ce1b..86886567 100644
--- a/docs/maps/api-room.md
+++ b/docs/maps/api-room.md
@@ -54,6 +54,7 @@ WA.room.showLayer(layerName : string): void
 WA.room.hideLayer(layerName : string) : void
 ```
 These 2 methods can be used to show and hide a layer.
+if `layerName` is the name of a group layer, show/hide all the layer in that group layer.
 
 Example :
 ```javascript
@@ -70,6 +71,9 @@ WA.room.setProperty(layerName : string, propertyName : string, propertyValue : s
 
 Set the value of the `propertyName` property of the layer `layerName` at `propertyValue`. If the property doesn't exist, create the property `propertyName` and set the value of the property at `propertyValue`.
 
+Note : 
+To unset a property form a layer, use `setProperty` with `propertyValue` set to `undefined`.
+
 Example :
 ```javascript
 WA.room.setProperty('wikiLayer', 'openWebsite', 'https://www.wikipedia.org/');
diff --git a/front/src/Api/Events/LayerEvent.ts b/front/src/Api/Events/LayerEvent.ts
index d3fdda22..b56c3163 100644
--- a/front/src/Api/Events/LayerEvent.ts
+++ b/front/src/Api/Events/LayerEvent.ts
@@ -3,7 +3,6 @@ import * as tg from "generic-type-guard";
 export const isLayerEvent = new tg.IsInterface()
     .withProperties({
         name: tg.isString,
-        group: tg.isBoolean,
     })
     .get();
 /**
diff --git a/front/src/Api/iframe/room.ts b/front/src/Api/iframe/room.ts
index 8ff31375..deee0e2a 100644
--- a/front/src/Api/iframe/room.ts
+++ b/front/src/Api/iframe/room.ts
@@ -93,11 +93,11 @@ export class WorkadventureRoomCommands extends IframeApiContribution<Workadventu
         }
         subject.subscribe(callback);
     }
-    showLayer(layerName: string, group: boolean = false): void {
-        sendToWorkadventure({ type: "showLayer", data: { name: layerName, group: group } });
+    showLayer(layerName: string): void {
+        sendToWorkadventure({ type: "showLayer", data: { name: layerName } });
     }
-    hideLayer(layerName: string, group: boolean = false): void {
-        sendToWorkadventure({ type: "hideLayer", data: { name: layerName, group: group } });
+    hideLayer(layerName: string): void {
+        sendToWorkadventure({ type: "hideLayer", data: { name: layerName } });
     }
     setProperty(layerName: string, propertyName: string, propertyValue: string | number | boolean | undefined): void {
         sendToWorkadventure({
diff --git a/front/src/Phaser/Game/GameScene.ts b/front/src/Phaser/Game/GameScene.ts
index a05a50c5..d181e600 100644
--- a/front/src/Phaser/Game/GameScene.ts
+++ b/front/src/Phaser/Game/GameScene.ts
@@ -1026,13 +1026,13 @@ ${escapedMessage}
 
         this.iframeSubscriptionList.push(
             iframeListener.showLayerStream.subscribe((layerEvent) => {
-                this.setLayerVisibility(layerEvent.name, true, layerEvent.group);
+                this.setLayerVisibility(layerEvent.name, true);
             })
         );
 
         this.iframeSubscriptionList.push(
             iframeListener.hideLayerStream.subscribe((layerEvent) => {
-                this.setLayerVisibility(layerEvent.name, false, layerEvent.group);
+                this.setLayerVisibility(layerEvent.name, false);
             })
         );
 
@@ -1088,9 +1088,13 @@ ${escapedMessage}
         property.value = propertyValue;
     }
 
-    private setLayerVisibility(layerName: string, visible: boolean, group: boolean): void {
-        if (group) {
-            const phaserLayers = this.gameMap.findPhaserLayers(layerName);
+    private setLayerVisibility(layerName: string, visible: boolean): void {
+        const phaserLayer = this.gameMap.findPhaserLayer(layerName);
+        if (phaserLayer != undefined) {
+            phaserLayer.setVisible(visible);
+            phaserLayer.setCollisionByProperty({ collides: true }, visible);
+        } else {
+            const phaserLayers = this.gameMap.findPhaserLayers(layerName + "/");
             if (phaserLayers === []) {
                 console.warn(
                     'Could not find layer with name that contains "' +
@@ -1103,14 +1107,6 @@ ${escapedMessage}
                 phaserLayers[i].setVisible(visible);
                 phaserLayers[i].setCollisionByProperty({ collides: true }, visible);
             }
-        } else {
-            const phaserLayer = this.gameMap.findPhaserLayer(layerName);
-            if (phaserLayer === undefined) {
-                console.warn('Could not find layer "' + layerName + '" when calling WA.hideLayer / WA.showLayer');
-                return;
-            }
-            phaserLayer.setVisible(visible);
-            phaserLayer.setCollisionByProperty({ collides: true }, visible);
         }
         this.markDirty();
     }