Soundcheck - select parts for backing track

Hello,

For choral students, it would be amazingly helpful for them to be able to record their own parts in SoundCheck, with only the piano accompaniment as their backing track. As it is now, all other voice parts are included in the backing track, making it confusing. For example, altos who are distracted by the soprano melody, etc.

I'm aware that students can choose to forego the backing track, but that means they're being asked to record a capella without the tonal information provided by the piano accompaniment, and any kid who is able to do that probably doesn't need this assignment to begin with. So the "in between" need of having harmonic support, but not the other voices, is exactly what's needed and missing.

Noteflight tech support suggested that I simply create separate assignments for students of different voice parts, but that makes Google Classroom integration and grading a nightmare. 

Please consider adding this feature! Thank you!

David