Copy sets from a current student for a new student.

When a new student joins a school, we often have to add them to every subject set manually, one at a time (for linked sets, at least once in one of the linked sets). Most if not every time, we already know a student with the exact subject set combination as a new student. If we can somehow copy all sets from a current student to another student without removing them from the source student, it will be a very useful function for us, which will reduce the time it takes, especially at the start of the year, as well as at the end of the year.