Bind Taunt + Spell?

[MrMcCoy]

well, as you can see right here:
http://forums.heroesofnewerth.com/sh...7&postcount=11

i bound taunt to pyro ult. its lulz

Is it possible? I don't know if you can bind two things on the same key, and if i bind it R = Taunt , R= Ult . it wont cast both at same time, will it?