In this example optional extras are available.

The staff attendees can bring one Guest at a reduced price

In this example there is a discounted/free of charge rate which can only be purchased if the payers have the passcode (once they have logged in, they will need to enter a passcode in order to proceed with the booking for the discounted/free of charge rate)

2 delegate rates and no extras or guests.

In this example, the event is full but payers can add themselves to a waiting list

NB:  The waiting list function only works when there is only one attendee category.  Do not use when more than one attendee category exists.

A two-day event with a discount and day choice handled with programme item (Extras) section.