It would be helpful to be able to send an enrollment to historic (and vice versa) without having to re-enroll the user in the enrollment. There are items that are inactive or no longer relevant that we want record of, but do not want in the active enrollment report.
Another instance would be someone who took a course that has auto-re-enrollment. We have a number of cases where we would want to keep a record of the original enrollment but they should no longer be in that course (i.e. shouldn't be auto-re-enrolled).