I was thinking that give us two sets of key bind settings that we can switch between easily would be a very useful tool, because of how smart casting works.

There are obviously different champions with abilities where smart casting would be the preferred method of key binding, while for others you want the regular key binding. It is very tedious to have to go to your key binding settings and change everything manually every game.

The ideal thing would be to be able to assign key binding settings per champion with a default setting for unassigned champions, but even a set of two key binding settings would be extremely useful.

What if you just changed ASDF to smart cast? then you would have made you own.

100% upvote. I want to set this per champion. At minimum, I'd settle for a toggle between to sets of key-bindings.

I've suggested that they just dump the keybindings into text files like Qsario-default, Qsario-Janna, Qsario-Nidalee, etc. That way, when you have other family members who play you don't mess each other up and everyone can set things up the way they prefer.