public void PopupGenericMenu(EditorWindow view, Rect pos)
{
GenericMenu menu = new GenericMenu();
IHasCustomMenu menu2 = view as IHasCustomMenu;
if (menu2 != null)
{
menu2.AddItemsToMenu(menu);
}
this.AddDefaultItemsToMenu(menu, view);
menu.DropDown(pos);
Event.current.Use();
}