When I connect to a computer with multiple monitors, I'd like a new function.
1) An action to take all programs running on monitors 2 and up move/place them on a new desktop that is effectively what is on monitor 2. The same for monitor 3, 4, ..., etc. Monitor 1 doesn't need to change.
2) An action to reverse step 1
This allows me to use the CTRL + WIN + <- or -> arrow to jump around.
I'd settle for something a lot less sophisticated but you have a pretty high bar.