Hey Ben,
Thanks for reaching out to us!
It sounds like you’re looking for Ticket meta which allows for additional information to be collected for RSVPs and ticket purchases. Unfortunately this isn’t quite yet available, however I believe it is the next big feature that will be released after we recently launched the new Event Tickets and Event Tickets Plus plugins.
If you would like, you can subscribe to our email list below and you’ll be notified as that feature becomes available for testing and release.
Thanks!