Go to Forms & Data > Form Builder and click on the Settings icon below each registration form to edit its settings.
Custom Redirect: If you want to to redirect a registration form to a specific URL on submission, use the Redirect setting. You need to enter the URL and choose from the option "Always" if the user should be redirected to this URL every time they submit the form or "Once" if the user should be redirected to the custom URL only when the form is submitted for the first time.
Invite-only mode: Enable invite-only mode so only users with the invite-only code could register through that form.
Deadline: You can set the deadline for participants to register through that form (the deadline is also applied for fields related to this role in the update profile view).
