While setting up a registration form, you can also configure form options using a number of toggle buttons. These include:

In case you want the registrations to be approved before they are confirmed, enable the Approve Registrations toggle button.

In case you want to enable the primary registrant to update attendee details upon ordering, enable the Update Attendee Details toggle button.

In case you want to enable registration for a specific set of people and not anyone, disable the Anyone can Register toggle button.