public override void DoGUI()
        {
            EditorGUI.BeginChangeCheck();
            _skinOriginal = EditorGUILayout.ObjectField("Original", _skinOriginal, typeof(GUISkin), false) as GUISkin;
            if (EditorGUI.EndChangeCheck())
            {
                EnableList();
            }

            if (_skinOriginal == null)
            {
                ExGUI.HelpBoxWarning("Necesitar asignar un GUISkin");
                return;
            }

            _currentAction = (GUIDActions)GUILayout.Toolbar((int)_currentAction, System.Enum.GetNames(typeof(GUIDActions)));
            ExGUIx.ScrollView("Scroll", delegate
            {
                switch (_currentAction)
                {
                case GUIDActions.Migrate:
                    DrawMigration();
                    break;

                case GUIDActions.ManageSkin:
                    DrawManageStyles();
                    break;
                    //case GUIDActions.AddDefault:
                    //    DrawAddDefault();
                    //    break;
                }
            });
            Repaint();
        }