You can add more users to allow an alternative email address to login. This uses the same Breeze Account, and multiple logins cannot be used for translation at the same time.
Visit the setup page at: https://control.breezetranslate.com/setup.
Scroll to the bottom of the setup page.
In the pop-up, add their Name, email address and password. You can also select the role they have, which are:
User: A normal user that can log in and start a stream
Admin: An administrator that can add other users and modify the subscription.