How do I create 'Bookable Sessions' in my registration form?

Choose 'Bookable Sessions' from the list of form fields on the right-hand side of the Registration Form editor.

Click on 'Add Sessions' and a pop-up session builder will appear.

Add the session information then 'create session'

Now you can add slots to your event. For recurrent sessions, you can add multiple slots.

Here you can name the slots and add capacity and a price if there is an additional session fee.

You can edit the sessions if needed and also delete them until attendees have started registering for the session, after which they cannot be deleted.