Hey @ephrain,
It is generally possible, but not without writing custom code to do so. We do not offer any support for helping with custom code, unfortunately, but we do have some documentation related to it that should be quite helpful. Our “themer’s guide”, for example, is the best place to start → https://theeventscalendar.com/knowledgebase/themers-guide/
You can use the system described in that guide to customize the ’email.php’ tickets template in The Events Calendar to include anything you would like.
Best of luck with your customizations!
— George