We would like to have a Custom Field for some of our events that does not show up on the registration form, but will show up under the users event history when it is populated by the administrator. This type of field would be useful for events that we book Hotel rooms for the attendee. We could put the Hotel Confirmation number in the back end and the use would see it under their Event registration history page. It would also be nice to have a check box that says "Send update to registrant" when you update the Confirmation number.
