Web Designer - Menu and Submenu : is it mandatory to have a submenu?

Hi all,

Within the Web Designer I want to create a menu called "White pages".

This menu won't need any submenu since the only page is the White pages.

Am I forced to create a submenu to be sure that the main menu is appearing on the web page ?

The screenshot below shows my tree in the WebDesigner with two menu items pointing to the same page

and below the result in the web app

When I remove the submenu in the Web Designer, the whole menu disapear.

=> Is there a solution to display only the main menu ?

Thanks again you for your help !