A module that is bound to a screen, that when is in another screen display the whats on the screen bound and pass button clicks back to first screen.

Do you mean so you can have multiple screens that are all configured exactly like a 'master' screen?

Yes but if update 'master' then all the one mirroring it would update as well. like when you plug a seconded monitor into you pc and you have set to show the same on both.