Hi,
Yeah it could be possible to do what you are asking, but not without significant customization, which we would not be able to support nor can we provide much more technical details about how everything works beyond the support documents already available.
As for tickets all our plugins use the eCommerce system’s checkout process to create the ticket for an event so you would have to build around that. Once a ticket is created it is stored in a custom post type you could access.
With Community Events if the person is a registered user and creates the event they are the author of the event so you could use a query to get all events they authored.
Cheers