Custom Key Question

I was updating my hacks and i had an idea that i was wondering about.
is it possible to make a assembly script that can be applied to the client or through Cheat Engine to make a key assigned as a hotkey?

for example make the letter 'K' Turn on and off my Godmode hack?
so instead of applying my Auto Scripts thru CE or patching the client i can just embed my on/off switch key into the client and not have to load ce everytime?

anyone can help me with this?

You can do a shortcut for trainer in CE.

its only fun if you edit the client though. xD makes you feel superior. hahah. wish i knew how to do it.