Please consider adding Mass Add Student's to Activity by Process List. We use custom forms to sign our students up for sports/clubs and are able to run these student's to a process list from there. Some sports/clubs have hundreds of student's sign up. This would enable our staff to mass add them to the activity instead of manually selecting each student which is very time consuming.
This would streamline the process of updating activities. We believe if you added the Process List capabilities most districts would take advantage of it ending in saving hours of staff time.