Two Swapable Areas

This kind of goes off my last post that was answered (thanks Lax!), but i want to get a bit more creative now.

Is it possible to have two regions to swap?

Example:

-Using 4 d3 games
-6 regions total
-Pressing 0 swaps the screens to main region 1, pressing 9 swaps the screen back
-Pressing 8 swasps the screen to main region 2, pressing 7 swaps the screen back

Is this possible?

Thanks in advance!