Is it possible to disable roblox's use of WASD keys and the Arrow keys?

I want to be able to change what the A & D keys do, in coordination with a locked camera similar to mouselock, so that A and D dont rotate the character and move left or right; but rather cause the character to "shuffle" left and right (using a different animation obviously). If I'm able to how, where is the game directory to be able to change it? Thanks (Also thanks for anyone answer my "alt key" question)