Hello Christian,
Good questions!
1. Is it possible to have an Event that is more than one day long in length? We will be selling retreats that are 3/4 days.
Absolutely. Events can span as many days as you would like.
2. Is it possible to have variable prices for an Event?
Yes, in the sense that you can create as many types of tickets for an event as you would like and set the prices for each one. So, a three-day ticket can be one price and a four-day ticket can be another price. I would imagine that you would set each retreat up as a separate event on the calendar and create one ticket for each event so the events are distinguished on the calendar, though you could combine both into the same event post and create both tickets in that post as well.
Here’s a good overview of how tickets work with the Event Tickets Plus add-on you might find helpful.
Does this help answer your question? Please let me know. 🙂
Cheers!
Geoff