I cannot find any good instructions on how to create sub-events. Basically I want to create a master/parent event that has 1 or 2 sub-events. I have found a few links about Conference Slots and have spent a day trying to work out how to use hem with no luck - any hints? Can it only be used with paid events because it is a shopping cart thing? Does it only work with online registrations? Can a staff member register a participant manually or does it only work with the online registration page?
Note that I'm using WordPress so the web-forms thing with Drupal is not an option.