public static BehaviorTreeEditor Open()
        {
            BehaviorTreeEditor window = (BehaviorTreeEditor)EditorWindow.GetWindow(typeof(BehaviorTreeEditor), false, "BehaviorTree Editor");

            window.minSize = new Vector2(WINDOW_MINSIZE_WIDTH, WINDOW_MINSIZE_HEIGHT);
            window.Show();
            return(window);
        }
        public override void OnInspectorGUI()
        {
            base.OnInspectorGUI();

            if (targets.Length == 1)
            {
                EditorGUILayout.Space();
                if (GUILayout.Button("Open Editor"))
                {
                    BehaviorTreeEditor.OpenWithSelect(target);
                }
            }
        }