Enable KB and Mouse while zoomed

This "quick and dirty hack" by moppsy allows the user to interact with windows while zoomed in. I must confess I haven't tried it - so if I have misdescribed it I'd like to know :)

From Moppsy's post:

It still has all the same quirks.
You need to zoom in a little before you can zoom out, and you need to be grabbed to cancel it.
So when your zoomed, in or out, grab the cube as to rotate it and press ESC.
Initiating the switcher also adds a grab, so while it's displaying you can drag the cube around, ESC works here too.
Initiating scale is another way to drag the cube and ESC cancel.

The code and whole post can be found here. Be sure to note the instructions on configuring it