Rather than ask about if a seat booking add-on exists (I checked), I was wondering if anyone had any thoughts on how existing add-ons may serve to fit the purpose. We're looking to run LAN Parties and our community is XenForo based. What we'd love to be able to do is have people buy their tickets (already done elsewhere) and be able to book their seat and then "check-in" at the actual event via XenForo. Any thoughts on how this could be done? Probably could be done using some messy custom fields, but I wanted to see if anyone had any other ideas before I went down that route.