When a customer creates a guest profile, they are able to edit it in some ways. The guest can see their profile by clicking "My Account" in the top right corner of the screen when visiting the online booking site, online store, or waivers section.
From here, they have the option to edit their guest info, add dependents and organizations to their profile, and view/sign waivers, if that module is enabled. The information they are allowed to edit is dependent on the existing Required Customer Fields; if the information is shown during the online booking process, then the guest is able to edit that information.
From the Dependents or Organizations tabs, the customer can add these associations as needed. They can click "Add" and enter in the necessary information to make the addition. This will be reflected in their PCS customer profile.
If the waivers features are active for your facility, then the customer will be able to view their signed waivers. They also have the option of signing a new one. Selecting "Sign" will redirect them to the waivers page with any existing data (Name, email address) filled in for them.