Originally Posted by
Sazda
For your scenario, you can easily do:
#showtooltip EITHERONE
/cast Kill Command
/cast Kill Shot
This will do Kill Command when pressed, unless it is on CD and Kill Shot is available. The question here is which one you want to put into the #showtooltip at the top of the macro. You would need a WA2 string to keep track of the other one, so you know when it comes off CD.
There are not a lot of abilities that you could put on the same key, unless you are ok with losing some DPS in the process. What I mean is: Dire Beast for example. You could just macro this into everyone of your abilities, but sometimes you might want to delay it a tiny bit for the extra DPS it gives you on a priority target.
How about buttons Q, E, R, T, S, F, G, Z, X, C, V? I assume you move with W, A, D still, so at least some of those buttons should be easy to reach for you (and possibly with a modifier as well).