Hi Barret,
Thanks for reaching out! This is not currently a feature that is available out of the box, but it could be done with a customization.
You can copy the email template into your child theme and edit it from there by following these instructions. The template can be found at /wp-content/plugins/event-tickets/src/views/tickets/email.php. While we are limited in the amount of support that we can provide for customizations, if you get stuck with the code, I’ll be happy to answer questions and help point you in the right direction! If you would like to get help with the code, we also have a list of recommended developers.
I’m sorry I don’t have a more straightforward solution here, but I hope that helps! Please let me know if you have any questions!
Thanks,
Jennifer