Cascading menus, or “submenus,” appear to the right of menu items as shown in the following illustration:
A cascading menu is useful for displaying related menu items without cluttering the menu.
To create a cascading menu item, first add the cascade menu item and all of the items that will cascade from it. Don’t specify an action for the cascade menu item, since it simply provides navigation to the cascading menu. Then use the Move Left and Move Right buttons to position the menu items beneath the cascade menu item, as shown in the following illustration.
The dashed lines in front of the menu items indicate they are part of a cascading menu.
For maximum usability, we recommend that you don’t create cascading menus more than one level deep.