Hi,
Thank you for reaching out to us. I hope you’re doing well.
Unfortunately we don’t have that functionality at the moment.
But there’s a workaround. Some folks have started using RSVPs for that. You can add RSVPs “tickets” to sold out events. This allows users to share their email address if they are interested in attending. You can then email the list of interested users when a ticket becomes available.
With some minor wording modification you can even rename RSVP to “Waitlist” and change any other verbiage to help make this a decent wait list feature for your website.
Best,
Juan.