Good evening Arlen and welcome to the Events Calendar forum!
Thank you for your interest in our products.
We’ll be glad to answer your questions.
We currently do not have a built-in feature for that unfortunately.
But you can vote for that feature request here: https://tribe.uservoice.com/forums/195723-feature-ideas/suggestions/6095921-add-waitlist-capability
Furthermore, you will notice that this page also provides a workaround for that.
I wish I had a better answer for you, but for now it’s the best one I have.
Let me know if that helps.
Have a great day!
Geoff B.