refrigerator

I have a 09-3385 and inside the refrigerator door there are these white plastic separators use in the door trays to separtate the trays into compartments... When not in use the separtators can be removed and used to lock the freezer and Refrigerator doors open (just a few inches) to prevent...

I've recently bought a Bighorn 3055 and really enjoying it, but can't find where the valve is that obviously needs turned on to get water to the icemaker in the frig/freezer. Have looked everywhere I can think of - inside and out with no luck. Can anyone help?