If you want the action to occur with either the button click or menu
selection, configure the event case to watch for both events by
selecting "Edit Events handled by this case", then in the top portion
where you select the 'Event Specifiers', click the plus sign to add
another event for that case.
With the event structure, you have Menu Selection (User) and Menu
Selection (App) with the event source set to . There is a
shipping example called Menu Selection with Events. If you browse the
the NI Example finder, you can find it a Building User
Interfaces>Menus and Toolbars.