Newbie question: How do I set my touchbar to simply default to function keys for a game?

[JRoseland]

This doesn't seem like it should be so complicated to figure out. I just want the touch bar to display the function keys (F1, F2, F3, etc) for a game that requires them.

This is what I've configured for Battlezone2.exe

What am I missing?

Thanks in advance, for any support!