Changes the equipment grid dimensions of the Space Age "Toolbelt Equipment" from the awkward 3x1 to 2x2, or optionally 1x2 or 2x1.
If you opt for the (non-default) 1x2 or 2x1 grid size, know that you're slightly cheating, because you're getting 50% more inventory slots per equipment grid square, than intended by the developers. Still, it's not too crazy. :) The default option is actually a slight nerf, you're now getting 25% less inventory slots per grid square, but in a more usable grid size.