To Create a Sub-menu

1. From the Mac OS menu bar, click Tools menu Customize Interface (CUI) or at the Command prompt, enter cui and press Enter.
2. In the Customize dialog box, Menus tab, Menus list, expand the menu you want to add a sub-menu to.
3. Select the menu item you want to insert the new sub-menu after.
4. Click the Create Menu Element (+) button below the Menus list and click Add Sub-menu.

   A new sub-menu (named Sub-menu1) is created. The default name changes based on the number of sub-menus you previously created.

5. Enter a name for the new menu.

   The name entered is what will appear on the Mac OS menu bar. Click a sub-menu name twice to rename it.

6. In the Commands list, drag a command to the new sub-menu.
7. Release the button on the pointer device when the menu or sub-menu is highlighted, or the desired location for the command is indicated by a horizontal line.