Where is Authenticator?

[JPL1]

trafficstars

The Features page states:

Authenticator Use Standard Notes on both desktop and mobile as your authenticator app. Authenticator stores your 2FA secrets for other services so that you never lose them again, or have to start over when you get a new device.

I have a Professional subscription and I cannot see how to use this functionality. Or is this a use case rather than a feature?

[moughxyz]

To use Authenticator create a new note, then set the Note Type to Authenticator.

[JPL1]

Thank you - a HowTo would be a great addition to the website btw.