Please allow for ticket add-ons which can be used with all the upsell apps.

I run drag race events through Evey, and we sell parking passes, crew passes, spectator tickets, racer tickets and more. Having to make everything part of the ticket type is a giant pain in the ass. I want to be able to create a “Parking Pass” product and have it so that when the user purchases or bundles that product via one of the many “Upsell” apps shopify provides, it lets the ticket know that user has purchased an add-on via the check-in app.