I would like to see the ability for students to be able to save takes between practice sessions. They currently have the useless ability to delete a take (why does this mater... they only submit one assignment anyways). I understand some students like to get rid of the bad and only keep their top scores, but to not be able to keep them from practice session to practice session hurts their ability to make improvement over time. As a teacher I want to encourage students to work gradually over time and grow their skills, not try to master everything in one sitting. .
Students should not be punished for walking away from the music for a time and coming back to it later. In fact, they should be encouraged to do so when things are getting frustrating or they just need a break. Instead I get submissions of poor quality because students are just trying to get the best they can in one sitting.