Some infos about warkey or other tools of the same kind

Hello, I used to play warcraft 3 two or three years ago and I'm back.
I had something named keycraft (warkey now) but it seems to work only with standart games. I think you all know what this freeware is about so I won't explain what it does (which would be a pain in my ass).
Is there a way to have the same thing which works in custom games? (even if I think the answer will be no )

I know the keys are nether the same, but is it possible to say "a will always activate the bottom left spell in every custom games" for exemple?

Thank you and sorry for my english.