Configure Kawaks?

How do i change the default chat button that is used when i play over kaillera. I use to play on my keyboard and i use the chat button to my PPP moves.

The chat button is the backspace button and i use that button when i play. So every time i press that button my character stands still. Its quite annoying cuz its messes up my game.

Maybe there is a .ini file or something else i can change in?

Anyone know a sollution??

kaillera.ini is in window's folder, but there are no option about chat button.