1.Make the booking for all places using the Book This Contact button. If there are several places the attendees can be entered via a spreadsheet.
2.Select Add Names to Places on this Booking via Spreadsheet
3.Select or enter attendee names into spreadsheet. Click Log to upload to the booking
4.Click 6Structure menu and select Add to a Structure (this search)
5.Double click the desired Structure and the contacts will be added