A little background: I teach ceramics. My courses are mixed level so I may have a class with kids who are taking their first semester along with kids who have taken several semesters. Because if this, I have different assignments for different levels. 

Ideally, I could put kids into groups, say Level 1, and give everyone in that Level 1 the assignment, but assign it separately. I know there is an "assign individual grades" button, so it allows me to give them separate grades. 

The problem I run into is when they upload their submissions (I have them take a photo of their work and upload to Canvas) it turns it in for everyone in the group. This makes keeping track of who has turned in what an absolute nightmare.