If the menu length goes beyond the a pre-specified length, the code will automatically sectionalize the menu and provide Up and/or Down graphics to enable navigation between the menu sections.

• 如果菜单的长度超过了预先指定的长度，代码能自动地增加菜单的空间，提供向上和/或向下的图形来容纳菜单部分的导航。