There are different ways to let your users create a new account:
1. Login page auto-checking (recommended)
Add a login screen to your form or Require users to log in to use portal
If record does not exist
Create a new record for the user
This option allows users to create new profiles to sign up if they don't exist already.
2. Link on the login page
You can add a link for the user registration form to the portal's login page. You can set this up in Login Page Subtitle. Here's an example:
3. Link in an email
You can also email users a link that takes them directly to the registration form. You would need to set up one first.
The login info is not stored in the extension itself. They are records in Airtable. The login fields would be columns in your users' table.