Hi Reece ,
We are unfortunately unable to provide support through our Pre-Sales forum channel, but you can head over to The Events Calendar WordPress.org support forums for assistance and answers.
If you have purchased any premium plugin from us, you can log into your account and get assistance through the premium forums. If you need to reset your password, you can do so here. This will send an email to the account used when you initially registered for the support forums.
To get you started on your question though, no, unfortunately that is not possible. You will need to delete and then re-create it from the TEC side, or if you have our Eventbrite plugin, then you can possible import it through Events > Legacy import > Eventbrite.
Thanks for understanding and good luck resolving your issue. Have a good day!
Cheers,
Andras