Hi,
Thanks for using our plugins. I am looking forward to the new attendee information as well.
I do not have much for the Product Add Ons.
The ticket form is created by this file:
wootickets\src\views\wootickets\tickets.php
You can move that to your theme to edit following our themer’s guide:
https://theeventscalendar.com/knowledgebase/themers-guide/
As much as I would like to help out, I am limited doing much beyond this to help on a customization.
But if you have some specific questions I maybe to help answer them.
Thanks