I knew about the character prefs being stored on my comp, including the keybindings. I'm just comfortable with how the set up is now, having only ever played the mmo Eden Eternal, I really only know Istarias setup. So for me, changing the key bindings would be a similar thing to go through that Thickle does when I make a new alt. I see it'll probably be a majority vote anyway, isn't everything? so perhaps I'd be best just making a copy of the bindings before the new ones are used.
And autorun can be changed to any key, doesn't need to be numlock, though a new default would be nice.