I hope this is the right place for this,,but recently I saw in a magazine somewhere(now I cant find it of course), but I am sure it was fence, and somehow it opened an closed almost like a shutter, to allow light in or to block it, it seems it was vinyl, was hoping someone would maybe know the name,,I googled some things, but either came up with vinyl shutters or vinyl fence, so need help getting on the right track,,thanks steph