private void ActivateLayer(ElementsLayerSwitcher switcher, int newLayer)
{
Undo.RecordObject(switcher, "Changed Active Layer");
switcher.Refresh();
switcher.ActivateLayer(newLayer);
Undo.undoRedoPerformed += OnUndo;
}
private void OnUndo()
{
ElementsLayerSwitcher switcher = target as ElementsLayerSwitcher;
switcher.ActivateLayer(switcher.SelectedLayer);
}