diff --git a/Packages/nadena.dev.modular-avatar/Editor/Inspector/AvMenuTreeView.cs b/Packages/nadena.dev.modular-avatar/Editor/Inspector/AvMenuTreeView.cs
index b3ee28c2..7577b340 100644
--- a/Packages/nadena.dev.modular-avatar/Editor/Inspector/AvMenuTreeView.cs
+++ b/Packages/nadena.dev.modular-avatar/Editor/Inspector/AvMenuTreeView.cs
@@ -150,19 +150,22 @@ namespace nadena.dev.modular_avatar.core.editor
         }
 
         private void TraverseMenu(int depth, List<TreeViewItem> items, VRCExpressionsMenu menu) {
-            IEnumerable<KeyValuePair<string, VRCExpressionsMenu>> children = this._menuTree.GetChildren(menu)
-                .Where(child => !this._visitedMenuStack.Contains(child.Value));
-            foreach (KeyValuePair<string, VRCExpressionsMenu> child in children) {
+            IEnumerable<MenuTree.ChildElement> children = this._menuTree.GetChildren(menu)
+                .Where(child => !this._visitedMenuStack.Contains(child.menu));
+            foreach (MenuTree.ChildElement child in children) {
+                string displayName = child.installer == null ? 
+                    $"{child.menuName} ({child.menu.name})" : 
+                    $"{child.menuName} ({child.menu.name}) InstallerObject : {child.installer.name}";
                 items.Add(
                     new TreeViewItem {
                         id = items.Count,
                         depth = depth,
-                        displayName = $"{child.Key} ({child.Value.name})"
+                        displayName = displayName
                     }
                 );
-                this._menuItems.Add(child.Value);
-                this._visitedMenuStack.Push(child.Value);
-                this.TraverseMenu(depth + 1, items, child.Value);
+                this._menuItems.Add(child.menu);
+                this._visitedMenuStack.Push(child.menu);
+                this.TraverseMenu(depth + 1, items, child.menu);
                 this._visitedMenuStack.Pop();
             }
         }
diff --git a/Packages/nadena.dev.modular-avatar/Editor/MenuTree.cs b/Packages/nadena.dev.modular-avatar/Editor/MenuTree.cs
index f0eeffee..fe51db9a 100644
--- a/Packages/nadena.dev.modular-avatar/Editor/MenuTree.cs
+++ b/Packages/nadena.dev.modular-avatar/Editor/MenuTree.cs
@@ -9,16 +9,22 @@ using static VRC.SDK3.Avatars.ScriptableObjects.VRCExpressionsMenu.Control;
 // ReSharper disable once CheckNamespace
 namespace nadena.dev.modular_avatar.core.editor {
 	public class MenuTree {
+		public struct ChildElement {
+			public string menuName;
+			public VRCExpressionsMenu menu;
+			public ModularAvatarMenuInstaller installer;
+		}
+		
 		private readonly VRCExpressionsMenu _rootMenu;
 		private readonly HashSet<VRCExpressionsMenu> _included;
-		private readonly Dictionary<VRCExpressionsMenu, List<KeyValuePair<string, VRCExpressionsMenu>>> _childrenMap;
+		private readonly Dictionary<VRCExpressionsMenu, List<ChildElement>> _childrenMap;
 
 		private readonly Dictionary<VRCExpressionsMenu, ImmutableArray<VRCExpressionsMenu>> _flashedChildrenMap;
 
 		public MenuTree(VRCAvatarDescriptor descriptor) {
 			this._rootMenu = descriptor.expressionsMenu;
 			this._included = new HashSet<VRCExpressionsMenu>();
-			this._childrenMap = new Dictionary<VRCExpressionsMenu, List<KeyValuePair<string, VRCExpressionsMenu>>>();
+			this._childrenMap = new Dictionary<VRCExpressionsMenu, List<ChildElement>>();
 
 			if (this._rootMenu == null) {
 				this._rootMenu = ScriptableObject.CreateInstance<VRCExpressionsMenu>();
@@ -34,46 +40,49 @@ namespace nadena.dev.modular_avatar.core.editor {
 
 		public void MappingMenuInstaller(ModularAvatarMenuInstaller installer) {
 			if (installer.menuToAppend == null) return;
-			VRCExpressionsMenu parent = installer.installTargetMenu;
-			if (parent == null) parent = this._rootMenu;
-			this.MappingMenu(installer.menuToAppend, parent);
+			this.MappingMenu(installer.menuToAppend, installer);
 		}
 
-		public IEnumerable<KeyValuePair<string, VRCExpressionsMenu>> GetChildren(VRCExpressionsMenu parent) {
+		public IEnumerable<ChildElement> GetChildren(VRCExpressionsMenu parent) {
 			// TODO: ライブラリとするのであれば、複製したリスト or ImmutableArray,を返すのが好ましい
 			if (parent == null) parent = this._rootMenu;
-			return this._childrenMap.TryGetValue(parent, out List<KeyValuePair<string, VRCExpressionsMenu>> children)
+			return this._childrenMap.TryGetValue(parent, out List<ChildElement> children)
 				? children
-				: Enumerable.Empty<KeyValuePair<string, VRCExpressionsMenu>>();
+				: Enumerable.Empty<ChildElement>();
 		}
 
-		private void MappingMenu(VRCExpressionsMenu root, VRCExpressionsMenu customParent = null) {
+		private void MappingMenu(VRCExpressionsMenu root, ModularAvatarMenuInstaller installer = null) {
 			Queue<VRCExpressionsMenu> queue = new Queue<VRCExpressionsMenu>();
 			queue.Enqueue(root);
+			bool first = true;
 
 			while (queue.Count > 0) {
 				VRCExpressionsMenu parent = queue.Dequeue();
-				IEnumerable<KeyValuePair<string, VRCExpressionsMenu>> subMenus = GetSubMenus(parent);
-				if (customParent != null) {
-					parent = customParent;
-					customParent = null;
+				IEnumerable<KeyValuePair<string, VRCExpressionsMenu>> childMenus = GetChildMenus(parent);
+				
+				if (first && installer != null) {
+					parent = installer.installTargetMenu != null ? installer.installTargetMenu : _rootMenu;
+					
 				}
 
-				foreach (KeyValuePair<string, VRCExpressionsMenu> subMenu in subMenus) {
-					if (!this._childrenMap.TryGetValue(parent, out List<KeyValuePair<string, VRCExpressionsMenu>> children)) {
-						children = new List<KeyValuePair<string, VRCExpressionsMenu>>();
+				foreach (KeyValuePair<string, VRCExpressionsMenu> childMenu in childMenus) {
+					if (!this._childrenMap.TryGetValue(parent, out List<ChildElement> children)) {
+						children = new List<ChildElement>();
 						this._childrenMap[parent] = children;
 					}
 
-					children.Add(subMenu);
-					if (this._included.Contains(subMenu.Value)) continue;
-					queue.Enqueue(subMenu.Value);
-					this._included.Add(subMenu.Value);
+					ChildElement childElement = new ChildElement { menuName = childMenu.Key, menu = childMenu.Value, installer = installer };
+					children.Add(childElement);
+					if (this._included.Contains(childElement.menu)) continue;
+					queue.Enqueue(childElement.menu);
+					this._included.Add(childElement.menu);
 				}
+
+				first = false;
 			}
 		}
 
-		private static IEnumerable<KeyValuePair<string, VRCExpressionsMenu>> GetSubMenus(VRCExpressionsMenu expressionsMenu) {
+		private static IEnumerable<KeyValuePair<string, VRCExpressionsMenu>> GetChildMenus(VRCExpressionsMenu expressionsMenu) {
 			return expressionsMenu.controls
 				.Where(control => control.type == ControlType.SubMenu && control.subMenu != null)
 				.Select(control => new KeyValuePair<string, VRCExpressionsMenu>(control.name, control.subMenu));