Do not find a "special Menu" Item How to configure the Main Menu

Hello,
i have to admin the SuiteCRM. We upgraded from Sugar to Suite CRM 7.8.9 . My college integrated in the old SugarCRM a special Menu “Verkauf” in the Top Menu Bar. (Picture enclosed)

This is now in Suite CRM too available. But i now want the SuiteCRM standard menu again.

I read the documentation but did not find how to configure this Menu.

Has anyone a hint for me where to configure this additional drop down menus?