There's 9 free hero icons I think (hide your own hero, there's no need for that icon to show) and use those 9 icons for abilities, so when you click an icon, the spell is automatically cast?
It would look quite bad since you can only go to f7 i belive before it affect the Quest/log/menú system, but anyway, it's worth a try
Hotkeys 1,2,3 etc. would be hard to make, it would at least require changes in the Wc:III core files
Nah, maybe not in the core files, but it would probably need some extremely awesome triggers.
You can't do stuff like this with pure trigger or map-data.. Or am I wrong
Maybe in the future, but not now.