There is now a search box enabled in V8.82 on the top right hand corner of SAP when  viewing the main menu.  Using the search box you can easily perform the following
searches in SAP Business One:
  •  Menu search: Locate window-level menus so that you will not have to navigate in the Main Menu to find a window.
  • Data search:Locate items, business partners, and documents using the search box.