It is possible to declare 2 screens and pick one in the layout view, but this doesn't accurately represent the hardware at all. I think 2 SVG screens just for inverting the colours is a too hacky solution. Maybe it's possible with shaders, HLSL anyone?
Keep in mind that the Superscreen can do more than just invert colors. Some carts have a filter you can place over them with background artwork. These will only work on the Superscreen. You have to take them off the cart if you want to switch to another R-Zone model.
