diff --git a/Assets/VRM10/Editor/Components/VRM10ObjectEditor.cs b/Assets/VRM10/Editor/Components/VRM10ObjectEditor.cs
index fa61e3737..55efce643 100644
--- a/Assets/VRM10/Editor/Components/VRM10ObjectEditor.cs
+++ b/Assets/VRM10/Editor/Components/VRM10ObjectEditor.cs
@@ -1,5 +1,7 @@
-using UniGLTF;
+using System.Linq;
+using UniGLTF;
 using UnityEditor;
+using UnityEngine;
 
 namespace UniVRM10
 {
@@ -22,7 +24,7 @@ namespace UniVRM10
         SerializedPropertyEditor m_meta;
         SerializedPropertyEditor m_lookAt;
         SerializedPropertyEditor m_firstPerson;
-        SerializedPropertyEditor m_asset;
+        SerializedProperty m_prefab;
 
         void OnEnable()
         {
@@ -36,10 +38,22 @@ namespace UniVRM10
             m_meta = VRM10MetaEditor.Create(serializedObject);
             m_lookAt = SerializedPropertyEditor.Create(serializedObject, nameof(m_target.LookAt));
             m_firstPerson = SerializedPropertyEditor.Create(serializedObject, nameof(m_target.FirstPerson));
+
+            m_prefab = serializedObject.FindProperty("m_prefab");
         }
 
         public override void OnInspectorGUI()
         {
+            // prefab
+            if (_tab == Tabs.FirstPerson && m_prefab.objectReferenceValue == null)
+            {
+                EditorGUILayout.HelpBox("required !", MessageType.Error);
+            }
+            serializedObject.Update();
+            EditorGUILayout.ObjectField(m_prefab);
+            serializedObject.ApplyModifiedProperties();
+            EditorGUILayout.Separator();
+
             // select sub editor
             using (new EnabledScope())
             {
@@ -62,6 +76,14 @@ namespace UniVRM10
                     break;
 
                 case Tabs.FirstPerson:
+                    using (new EditorGUI.DisabledScope(m_target.Prefab == null))
+                    {
+                        if (GUILayout.Button("set default"))
+                        {
+                            m_target.FirstPerson.SetDefault(m_target.Prefab.transform);
+                        }
+                        EditorGUILayout.HelpBox("Clear Renderers and add all renderers (Auto)", MessageType.Info);
+                    }
                     m_firstPerson.OnInspectorGUI();
                     break;
             }
diff --git a/Assets/VRM10/Editor/ScriptedImporter/RemapEditorVrm.cs b/Assets/VRM10/Editor/ScriptedImporter/RemapEditorVrm.cs
index 86a952ceb..9093b11b8 100644
--- a/Assets/VRM10/Editor/ScriptedImporter/RemapEditorVrm.cs
+++ b/Assets/VRM10/Editor/ScriptedImporter/RemapEditorVrm.cs
@@ -78,6 +78,8 @@ namespace UniVRM10
             // vrmObject の expression を置き換える
             var vrmObject = AssetDatabase.LoadAllAssetsAtPath(importer.assetPath).First(x => x is VRM10Object) as VRM10Object;
             vrmObject.Expression.Replace(map);
+            vrmObject.Prefab = prefab; // for FirstPerson Editor
+
             // extract
             ExtractSubAsset(vrmObject, $"{path}/{vrmObject.name}.asset", false);
 
diff --git a/Assets/VRM10/Runtime/Components/VRM10Object/VRM10ObjectFirstPerson.cs b/Assets/VRM10/Runtime/Components/VRM10Object/VRM10ObjectFirstPerson.cs
index aaafcdf99..8e80e8f84 100644
--- a/Assets/VRM10/Runtime/Components/VRM10Object/VRM10ObjectFirstPerson.cs
+++ b/Assets/VRM10/Runtime/Components/VRM10Object/VRM10ObjectFirstPerson.cs
@@ -11,20 +11,21 @@ namespace UniVRM10
     {
         [SerializeField]
         public List<RendererFirstPersonFlags> Renderers = new List<RendererFirstPersonFlags>();
+        public void SetDefault(Transform root)
+        {
+            Renderers.Clear();
 
-        // public void CopyTo(GameObject _dst, Dictionary<Transform, Transform> map)
-        // {
-        //     var dst = _dst.GetOrAddComponent<VRM10Controller>();
-        //     dst.Vrm.FirstPerson.Renderers = Renderers.Select(x =>
-        //     {
-        //         var renderer = map[x.Renderer.transform].GetComponent<Renderer>();
-        //         return new RendererFirstPersonFlags
-        //         {
-        //             Renderer = renderer,
-        //             FirstPersonFlag = x.FirstPersonFlag,
-        //         };
-        //     }).ToList();
-        // }
+            var renderers = root.GetComponentsInChildren<Renderer>();
+            var paths = renderers.Select(x => x.transform.RelativePathFrom(root)).ToArray();
+            foreach (var path in paths)
+            {
+                Renderers.Add(new RendererFirstPersonFlags
+                {
+                    FirstPersonFlag = UniGLTF.Extensions.VRMC_vrm.FirstPersonType.auto,
+                    Renderer = path,
+                });
+            }
+        }
 
         // If no layer names are set, use the default layer IDs.
         // Otherwise use the two Unity layers called "VRMFirstPersonOnly" and "VRMThirdPersonOnly".