You know how when you get a hero, you can quickly select it by pushing its assigned function key? (the F keys at the top of your keyboard for those of you who don't know). Is there a way to reassign the keys to different heroes? So if you hire/train/summon/w.e. a hero, that hero (assuming its your first one) gets assigned to the F1 key, and the next will be assigned to the F2 key. Is there a way to swap the heroes' F keys? Or how about changing the second hero's key to F3, leaving F2 blank for a future hero?