Hmm, an interesting problem!
In terms of an OSBot script...
You would need to establish some kind of connection between multiple instances of the same script, local or remote. I'm sure there is a way to do this, but it would not be very straightforward. That being said, it might be easier to solve the problem a different way -- perhaps there is software online that allows you to duplicate your mouse cursor? Then you could space your clients out across a large monitor such that you can view all windows simultaneously. Worth looking in to!
Apa