I have a row of popper studs in my 2008 Dethleffs T66 Sunlight roof. Does anyone know if it was a standard thing with the motorhome or has a previous owner had it fitted? Dont know why its missing, as I suppose its not much use in another van. I suppose I could buy a curtain from Dunelm and mark up the poppers myself and fit them or is it an off the shelf item perhaps.