[Zubersoft]

Adding something for that is on my list of things to do. You may want to consider using the library window in the meantime. Tap the center of the screen while viewing a score to bring up the overlay, tap the circle at the bottom left and then "Show Library Window". By default, this displays the last tab you had active on the library screen.  You can have it display the list of songs from the setlist that is currently loaded, and one of the supported settings is an option to automatically close or collapse the window when a song is loaded. So this effectively should get you what you are asking for.

Mike