You build a new menu by creating a new Menu object and then working on it in the Menu painter.
To create a new menu:
Click the New button in the PowerBar.
On the PB Object tab page, select Menu.
Click OK.
The Menu painter opens and displays the Tree Menu view and the WYSIWYG view for defining the menu, and the General and Appearance tab pages for setting menu and toolbar properties. For information about menu and toolbar properties, see “Defining the appearance and behavior of menu items”.
Because you are creating a new menu and have not added menu items yet, the only content in the Tree Menu view and the WYSIWYG view is an untitled top-level tree view item in the TreeMenu view.