Include paid sessions and ala carte items in checkout.
As a attendee I like to sigup for an event and sessions at the same time. The session and event are for free. Now I first have to sigin up for the event and with an email I can sign up for a session. Use case: potential student visit an open house if there are session which are important for them. So when registrer for an session means they visit the open house event.
Planned for November 2019