Sonos says to go into settings as usual half the info needed - settings where on the mac in the app where FFS?

Sonos says to go into settings as usual half the info needed - settings where on the mac in the app where FFS?
Follow the instructions in this article:
https://support.sonos.com/en-us/article/add-your-music-library-to-sonos
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.