Godwyn wrote on Mar 25^th, 2019 at 6:44pm:

Also use NUM 2,4,6,8 to move left, right, up and down.

If you have a joystick with a coolie hat, you can use it instead of the keyboard-keys  :)

Additional you can move the seat up/down with SHIFT+ENTER/SHIFT+BACKSPACE - check the controls/keyboard assignement in the Options.