LOL - note the small "edit" text at the bottom. "Do as I say, not as I do."
But lets give them a bit of slack - this wasn't a bug from release, it was an unexpected side-effect from trying to fix something else.
I want to use up arrow key to move forward and the down arrow to move backward but the basic controls is: w - move forward, s - move backward, you can't change this keys to up arrow or down arrow keys in the game options in the main menu, ok you can use the right mouse button(holding) to move.