Thanks for your idea. We have no current plans to implement such a feature as this would severely reduce the chord window size for smaller screens.
However, have you checked out the chord diagrams button (4th in from the left on the chords page)? This will bring up all the diagrams for the chords of the song that you are on and can also be printed out free of charge so you can refer to these while you are playing.Val Taylor commented
Could we have better vertical spacing on the piano chord print out?
They overlap and it's hard to read the print out. Or could we get a full screen on the piano chords, perhaps with zoom capability? It would be so nice to see more than 2 rows on a screen. Thanks!