I saw an inhome studio once that had some sort of tracking along the ceiling and she had all her backdrops (curtains, not paper) hanging from it. She would just bring around the one she wanted. Where do I find that? What is the proper term for it?! And would it be sturdy enough to clip to the seamless paper or would you recommend a backdrop stand instead? I did see those threads so I have some good ideas there. I just like the idea of the tracking to keep things neat and tidy with no extra equipment taking up floor space. Thanks!