Currently, when you register a constituent for an event, a registrant record is created with a unique read-only EventID field. If it transpires, at a later date that they've been registered for the wrong event, you would have to recreate the entire record and all the attributes.

It would be quite nifty and efficient if it were possibly to simply amend the EventID field.

This would, naturally, be an Admin-only function or a function that could be included within certain user groups only.