diff --git a/config.js b/config.js
index 85fa927..0380c1e 100644
--- a/config.js
+++ b/config.js
@@ -66,6 +66,7 @@ export const config = {
                     },
                     {
                         label: 'Sala / Auditorium',
+                        color: 'rgb(212, 96, 75)',
                         children: [
                             {
                                 label: 'Peplano / Platea',
@@ -108,6 +109,7 @@ export const config = {
                     },
                     {
                         label: 'Scena',
+                        color: 'rgb(75, 100, 212)',
                         children: [
                             {
                                 label: 'Palcoscenico',
@@ -129,6 +131,7 @@ export const config = {
                     },
                     {
                         label: 'Spazi tecnici',
+                        color: 'rgb(42, 139, 75)',
                         children: [
                             {
                                 label: 'Spazio tecnico superiore',
@@ -152,6 +155,7 @@ export const config = {
                     },
                     {
                         label: 'Orchestra',
+                        color: 'rgb(187, 120, 218)',
                         children: [
                             {
                                 label: 'Fossa orchestra',
diff --git a/js/controllers/menu_controller.js b/js/controllers/menu_controller.js
index 3ac3f0e..79b8344 100644
--- a/js/controllers/menu_controller.js
+++ b/js/controllers/menu_controller.js
@@ -34,8 +34,46 @@ export default class extends Controller {
          */
         const id = event?.params.node;
         const status = event?.target?.checked;
-        ATON.getSceneNode(id).toggle(status);
-        AppState.normalizedNodes.find(n => n.id === id).active = status;
+        const node = AppState.normalizedNodes.find(n => n.id === id);
+
+        if (node.children.length > 0) {
+            this.#toggleGroup(node, status);
+            this.#syncGroupCheckboxes(node, status, this.layersTarget);
+        } else {
+            ATON.getSceneNode(id).toggle(status);
+            node.active = status;
+        }
+    }
+    /**
+     * Recursively toggle children in a nodes group
+     * @param {Object} groupNode
+     * @param {Boolean} status
+     */
+    #toggleGroup(groupNode, status) {
+        for (const child of groupNode.children) {
+            if (child.model) {
+                ATON.getSceneNode(child.id).toggle(status);
+                child.active = status;
+            }
+            if (child.children.length > 0) {
+                this.#toggleGroup(child, status);
+            }
+        }
+    }
+    #syncGroupCheckboxes(groupNode, status, container) {
+        for (const child of groupNode.children) {
+            const checkbox = container.querySelector(
+                `[data-menu-node-param="${child.id}"]`
+            );
+
+            console.debug(checkbox, child.id);
+
+            if (checkbox) checkbox.checked = status;
+            
+            if (child.children.length > 0) {
+                this.#syncGroupCheckboxes(child, status, container);
+            }
+        }
     }
     /**
      * Clone a <template> by id
diff --git a/js/scene.js b/js/scene.js
index 4d6f042..ccf5d5c 100644
--- a/js/scene.js
+++ b/js/scene.js
@@ -79,6 +79,11 @@ function loadNodes(nodes) {
         node.load(n.model);
         node.setRotation(...config.scene.initRotation);
 
+        node.setMaterial(new THREE.MeshPhongMaterial({
+            transparent: false,
+            color: n.color ?? '#fff',
+        }));
+
         // Apply any transparency before attaching to scene
         if (n.opacity !== undefined && n.opacity !== null) {
             node.setMaterial(new THREE.MeshPhongMaterial({
diff --git a/js/utils/nodeUtils.js b/js/utils/nodeUtils.js
index 13afd12..518e923 100644
--- a/js/utils/nodeUtils.js
+++ b/js/utils/nodeUtils.js
@@ -28,41 +28,49 @@
  * @param {Array} flatList 
  * @param {Number} depth
  */
-function traverse(node, flatList, depth = 1) {
+function traverseTree(node, flatList, depth = 1, inheritedColor = null) {
     if (!node.label) {
         console.error("Node missing label:", node);
         return;
     }
 
+    const color = node.color ?? inheritedColor;
+
     const normNode = {
         ...node,
         id: node.id ?? node.label,
         isMain: node.isMain ?? false,
         active: true,
+        color: color ?? null,
+        depth,
+        children: [],
     };
     if (node.model) {
        normNode.model = node.model; 
     }
-    flatList.push({
-        ...normNode,
-        depth
-    });
+
+    flatList.push(normNode);
+
     if (node.children && Array.isArray(node.children)) {
-        for(let child of node.children) {
-            traverse(child, flatList, depth + 1);
+        for(const child of node.children) {
+            normNode.children.push(
+                traverseTree(child, flatList, depth + 1, color)
+            );
         }
     }
+
+    return normNode;
 }
 
 /**
  * Create a flat list of nodes from
  * the nested structure in config
  * @param {Array} nodes
- * @returns {NormalizedSceneNode[]} A flat list of nodes
+ * @returns {{flat: NormalizedSceneNode[], normNode: object}} A flat list of nodes
 **/
 export function normalizeNodes (nodes) {
     let flatList = [];
-    traverse(nodes, flatList);
+    const normNode = traverseTree(nodes, flatList);
 
-    return flatList;
+    return {flat: flatList, normNode};
 }
diff --git a/scenes/salvador/index.html b/scenes/salvador/index.html
index 47611c8..0b66285 100644
--- a/scenes/salvador/index.html
+++ b/scenes/salvador/index.html
@@ -46,6 +46,13 @@
     <script type="text/javascript" src="../../vendor/three/examples/js/controls/DragControls.js"></script>
     <script type="text/javascript" src="/dist/ATON.min.js"></script>
 
+    <script type="importmap">
+        {
+            "imports": {
+                "@hotwired/stimulus": "../../vendor/@hotwired/stimulus/dist/stimulus.js"
+            }
+        }
+    </script>
 	<!-- Main js entry -->
 	<script type="module" src="./index.js"></script>
 </head>
diff --git a/scenes/salvador/index.js b/scenes/salvador/index.js
index e6b4c16..f10b480 100644
--- a/scenes/salvador/index.js
+++ b/scenes/salvador/index.js
@@ -2,13 +2,14 @@ import { openScene } from "../../js/scene.js";
 import { config } from "../../config.js";
 import AppState from "../../js/state.js";
 import { normalizeNodes } from "../../js/utils/nodeUtils.js";
-import { initUI, pauseAudio } from "../../js/ui.js";
+import { initStimulus } from "../../js/utils/stimulus.js";
+
+initStimulus();
 
 AppState.currentScene = 'salvador';
-AppState.sceneHasAudio = true;
 const marker = config.markers.find(m => m.id === 'salvador');
-AppState.normalizedNodes = normalizeNodes(marker.nodes);
+AppState.normalizedNodes = normalizeNodes(marker.nodes).flat;
 
-openScene(marker, AppState.normalizedNodes);
-initUI();
-pauseAudio('[data-bs-dismiss="modal"]');
+console.debug(AppState.normalizedNodes);
+
+openScene(marker, AppState.normalizedNodes);
\ No newline at end of file
diff --git a/scenes/ssgp/index.js b/scenes/ssgp/index.js
index 9691181..0c3f841 100644
--- a/scenes/ssgp/index.js
+++ b/scenes/ssgp/index.js
@@ -8,6 +8,6 @@ initStimulus();
 
 AppState.currentScene = 'ssgp';
 const marker = config.markers.find(m => m.id === 'ssgp');
-AppState.normalizedNodes = normalizeNodes(marker.nodes);
+AppState.normalizedNodes = normalizeNodes(marker.nodes).flat;
 
 openScene(marker, AppState.normalizedNodes);