private void MenuSelectLightmapUsers(Rect rect, int lightmapIndex)
{
if ((Event.current.type == EventType.ContextClick) && rect.Contains(Event.current.mousePosition))
{
string[] texts = new string[] { "Select Lightmap Users" };
Rect position = new Rect(Event.current.mousePosition.x, Event.current.mousePosition.y, 1f, 1f);
EditorUtility.DisplayCustomMenu(position, EditorGUIUtility.TempContent(texts), -1, new EditorUtility.SelectMenuItemFunction(this.SelectLightmapUsers), lightmapIndex);
Event.current.Use();
}
}