Hi @bdurning,
You can’t add extra fields to the Paid Member Subscriptions form, but you could make use of the integration between Paid Member Subscriptions and Profile Builder to add extra fields to the forms.
Paid Member Subscriptions integrate 100% with Profile Builder, documentation here. You can also read more about the new Registration process here (basically you are using the Profile Builder Registration form in which you add the PMS Subscription Plans as a field).
You can also see here https://www.cozmoslabs.com/docs/profile-builder-2/manage-user-fields/#Default_Fields_Types all the fields that you can have with Profile Builder Free. Maybe you can use 1 or 2 Input fields to capture that address information.
Best regards,
