配列ぜんぶReorderableListにする

ReorderableEditor.cs

using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using UnityEditorInternal;

[CustomEditor(typeof(UnityEngine.Object), true)]
[CanEditMultipleObjects]
public class ReorderableEditor : Editor
{
    List<ReorderableList> reorderableLists = new List<ReorderableList>();

    ReorderableList CreateReordable(SerializedProperty property)
    {
        var reorderableList = new ReorderableList(property.serializedObject, property);
        reorderableList.drawElementCallback += (Rect rect, int index, bool isActive, bool isFocused) =>
        {
            var prop = property.GetArrayElementAtIndex(index);
            EditorGUI.PropertyField(rect, prop, true);
        };
        reorderableList.elementHeightCallback += index =>
        {
            var prop = property.GetArrayElementAtIndex(index);
            return EditorGUI.GetPropertyHeight(prop);
        };
        reorderableList.drawHeaderCallback += rect =>
        {
            EditorGUI.LabelField(rect, property.displayName);
        };
        return reorderableList;
    }

    bool isList(SerializedProperty property)
    {
        if (property.propertyType == SerializedPropertyType.String)
            return false;
        return property.isArray;
    }

    void OnEnable()
    {
        reorderableLists.Clear();
        var iter = serializedObject.GetIterator();
        if (!iter.NextVisible(true))
            return;
        while (iter.NextVisible(false))
        {
            if (!isList(iter)) continue;
            reorderableLists.Add(CreateReordable(iter.Copy()));
        }
    }

    public override void OnInspectorGUI()
    {
        if (reorderableLists.Count == 0)
        {
            base.OnInspectorGUI();
            return;
        }

        int index = 0;
        serializedObject.Update();
        var iter = serializedObject.GetIterator();
        iter.NextVisible(true);
        using (new EditorGUI.DisabledGroupScope(true))
            EditorGUILayout.PropertyField(iter);
        while (iter.NextVisible(false))
        {
            if (isList(iter))
            {
                reorderableLists[index].DoLayoutList();
                index++;
            }
            else
                EditorGUILayout.PropertyField(iter);
        }
        serializedObject.ApplyModifiedProperties();
    }
}