Hey Christopher,
Thanks for getting in touch!
I am not aware of any other settings in WooCommerce that allow you to add additional recipients to the emails. WooCommerce emails come directly from the WooCommerce plugin rather than Event Tickets or Event Tickets Plus, so you may want to reach out to WooCommerce support or their documentation for guidance.
That said, you might be interested in the solution that was provided in this other support thread:
getting bcc copy of ticket email to client
The examples provided in that thread allow you to blind copy additional people on the ticket email — that’s not exactly what you are looking for, but I thought I would mention it in case it gives you a starting point for customizing the WooCommerce emails.
Sorry I don’t have a concrete solution for you here, but does this at least help get you started? Please let me know.
Cheers!
Geoff