I'm playing League of Legends on Mac OSX Mavericks.
For self-casting, rather than Alt + Q, I'd like cmd + Q.
So I go to key bindings and try to set it. But when it asks me to type the key combination, I can't, because this is OS X' shortcut for closing the foreground app - when I press it, LoL thinks I'm trying to close the game.
How can I set self casting for the Q skill with cmd?