I have a 6 plug powernode zwave powerstrip and figured out the hard way that google will see every item on it as one even when they are in the item file as separate items.
For example, I added the first outlet to my item file and exposed it to ga for my Christmas tree lights. then added outlet 3 to my item file and exposed it to ga for a small plugin light on the side table. now ga only shows outlet 3 in the app and turning it off or on turns both plugs off or on.
I got around this for now by creating a virtual switch and exposing that to ga instead of outlet 3 and then using rules to have that switch turn outlet 3 on and off and to update that switches status to match outlet 3 - but would like a better solution if anybody has one.