Custom Window for 2nd or 3d monitor..

I do a lot of sessions where I book a drummer or guitarist to play on a client's track they've never heard before. Charts are not always available and so I would love being able to set up a computer monitor in the drum booth with a custom window showing track geography. Possibly a mix of the tempo map, markers on a timeline and maybe a visual metronome.
 
Just a nice-to-have :O)