Determining whether users can create accounts

By default, the Tonic Structural login page provides an option to create a new Structural account.

Any user who has access to the Structural URL can create an account.

On a self-hosted instance, to prevent any new accounts, set the environment setting TONIC_DISABLE_ACCOUNT_CREATION to true.

You can configure this setting from Structural Settings. So you can set it to false whenever a user needs to create an account, and then set it to true to once again prevent account creation.