Is it possible to create different types of events? For example: At some events for the registration is a special number field needed to fill in a customer number - frontend view. At other events this number field shoul not be shown at all in the frontend. So if somebody edit a new event in the backend there should be the possibility to chose a form for events with custom number field or a form without a custom number field. There is no check needed for the custom number. Can in this case a custom field be the solution?