I'm building my first Raspberry Pi based arcade cabinet using only AdvanceMame with AdvanceMenu and I was wondering how to rig the "management" buttons?

I would want users to be able to select a game and exit a game, but I want to prevent them from completely exiting the AdvanceMenu. At this time I'm still testing my setup, so no arcade buttons yet, but testing with my keyboard. The keyboard uses ESC to exit a game, but it also uses ESC to exit AdvanceMenu, dumping the user in a Linux prompt. How can I select another key to exit from the games to AdvanceMenu?