how to change keyboard controls

I really hate the arrow key steering and I want to use wasd how do I change it?

 

Look:
http://www.beamng.com/threads/1253-Edit-keyboard-controls

 

is this right?

////////////////////////////////////////////////
//// Keyboardmappings
// arrow
//moveMap.bind(keyboard,w, accelerate);
//moveMap.bind(keyboard,s, brake);
//moveMap.bind(keyboard,a, steer_left);
//moveMap.bind(keyboard,d, steer_right);

moveMap.bind(keyboard, a, moveleft );
moveMap.bind(keyboard, d, moveright );
moveMap.bind(keyboard, w, moveforward );
moveMap.bind(keyboard, s, movebackward );

moveMap.bind(keyboard, a, steer_left );
moveMap.bind(keyboard, d, steer_right );
moveMap.bind(keyboard, w, accelerate );
moveMap.bind(keyboard, s, brake );