Is there a way for a user to reschedule an event, other than canceling for event A and re-registring for event B? The difficulty is handling the payment portion on the back end. It would be nice to have a rescheduling button that would transfer all the user information, including payment to the new event.

Yes, I agree.

Currently you can re-schedule an event, including recurring event.

However, you can't reschedule the registration info because of the original event date is recorded. Unless you change it manually by SQL to the Registration record.

We might add such ability to reschedule the Registration info to the future version...