Is it possible to force an assignment to accept hand-ins from groups only?
In some of our courses, individual hand-ins are not an option. The students should add themselves to a group, before handing in an assignment. However, I'm unable to enforce this rule, and regardless of me emphasizing this, some students go about handing in individually anyway.
Is there a way to force an assignment to not accept individual hand-ins?
A workaround would obviously be to make sure that all students are members of a group, before allowing for submission or even creating the assignment, but I would really like to avoid this kind of administration.