Unique instance/window per monitor.

I pretty much always work with a separate terminal windows open on top in each monitor with lesser used items hiding behind them and the center monitor split to hell with tmux.

Guake provides me exactly what I want in that it lets me quickly expose what is open behind the terminal and then bring the terminal back to front, but it falls flat in that it only offers a single window at a time. As such the highly desirable ability to toggle the terminal in and out of view with a single button is only available to on one of three terminal windows I keep open while i'm still running gnome terminal on my bordering portrait monitors. These too i would like the ability to quickly move in and out of view at a key press.

I like the toggle feature following the mouse but instead of having the same terminal follow the mouse around having the toggle key activate a different terminal depending on which monitor the mouse was sitting on would be a literal dream.