You have to just add the information yourself.
Simply just add:
###################### SONOS Binding ###############################
sonos:openhabSonosDeviceID1.UDN
sonos:openhabSonosDeviceID2.UDN
etc...
Then in your item file:
Switch PlayLivingRoom {sonos="*[ON:openhabSonosDeviceID1:play]"}
Switch StopLivingRoom {sonos="*[ON:openhabSonosDeviceID1:stop]"}
..........
In your sitemap file:
Switch item=PlayLivingRoom
Switch item=StopLivingRoom
And the same procedure for your next zone pointing at your openhabSonosDeviceID2.