to add a service, tap the plus sign in the top right of the app.
you will now see all of your services that are connected to the same network as your smartphone.
tap sonos.
sonos will be automatically added to your services, and the window for configuring sonos will appear in the liza companion app.
you can now drag and drop any of the available controls, playlists and radio stations onto the grid at the top of the screen in the liza app. these will be automatically reflected on your liza.