you cant
from my understanding of the mod, you would have to make each event group a diffrent .cs file then when the event is lost in a server chainge crash or closeing you would need to distroy the file
not to metion that there are alot of key bindings in some peoples game
YOU HAVE ABSOLUTELY NO FING IDEA WHAT YOUR TALKING ABOUT... YOUR NOT EVEN REMOTELY CLOSE!
1) the "you cant" is complete bullstuff
2) you have no understanding of the mod, so your pulling this out of your ass?
3) you have no idea what a .cs file even is, do you?
4)key binding in other stuff has nothing to doo with it.
it would be simply this:
step 1) add-on on to the gui&script to let you have a wait for: key press
(edit of wait for, edit of gui, code for key press checking)
step 2) execute stuffs
step 3) yeyeyeyey
also: it would work with any number of keys easily/moderatly easily