Speaking of which, I meant to reply to Namea yesterday, but got distracted...

I think adding WASD controls for movement is unlikely. The controller UI has that type of movement, though the rest of the UI and controls are also geared for controller use, which may or may not be suitable to your tastee.
You may be able to get it working using Autohotkey (to map mouse position and button presses to the WASD keys) or Headsoft's VJoy Virtual Joystick Driver (in the controller UI, to map the left stick to the WASD keys).