Im not sure if this is the place to voice this idea, however i think it would be really cool if in a future update the app allowed the user to mute certain tracks or stems for particular portions of the song. It would be really neat because then it would give people like me the ability to create a downtime after a song, to just encourage prayer and spontaneous worship. Essentially i would add a verse to the end of a song like "What a Beautiful Name" and then for this particular added section, mute mute the drums, electric guitars and just have like the pad and piano going. Having a particular portion set preset without having to click a certain portion of the song and then trying to mute them manually while in live. Im not sure if i make myself clear.
BTW I love this site and the app. It has allowed me a quick and easy way to bring newer music that I was dying to play in our church without the extensive or elaborate setup.