Changing Cherry Key Function?

Hello All!

I stumbled upon Stefan Staub's Box2A (thank you for posting that!) I have edited it slightly so I am only using pan, tilt, edge, and zoom.

Its working flawlessly, but since I am only using two pages of parameters I wonder if it is possible to change one of the cherry key button functions to fire a Macro? My thought is to have the buttons go from (fine p/t, up, down) to (fine p/t, macro 1, down).

I have been trying to figure it out, but since I really don't know much about coding, I am lost. Any help would be greatly appreciated!

Best,

Justin