Hey Joe,
Events Calendar Pro has an “additional fields” feature that may suit your needs, which you can read about here → https://theeventscalendar.com/knowledgebase/pro-additional-fields/
Those are for events specifically, though; so if you need something that is just for tickets, like for collecting Attendee information for example, then unfortunately the only way to do that at this time is with some custom code writing.
We can’t help with custom code here but do have a Themer’s Guide which goes over the view customization process quite extensively → https://theeventscalendar.com/knowledgebase/themers-guide/
I hope this information helps!
– George