Hide window :?:

I have PiP working now with EQ1, but I have two issues.

1) I sometimes need to hide Region2, because it's always in front, I cannot see what is behind it on Region1.

2) Before ISBoxer, I used Alt-Tab to swap back and forth. Now I have Alt-1 and Alt-2, but it's starting to get annoying. Is there a way to swap back with just repeating Alt-1?

[MiRai]

In your window layout there is an option to use your mouse wheel with a modifier key. By holding that modifier key and then scrolling the mouse wheel it will flip through your screens.

That's cool, but didn't answer my question. I need to hide Region2 while I'm in Region1, because I have it sitting {always} on top of Region1.