Prebooking an Attendee for Multiple Business Event Types 
Use
This function lets you make multiple prebookings in one step. You can prebook one attendee for multiple business event types at one go.
Procedure
Result
You have prebooked the attendee for all of the event types in the prebooking list.
See also:
Prebook Attendance Prebooking Attendance Prebooking Multiple Attendees for a Business Event Type