Hey Guys, I'm looking for an OCDC that will allow me to leave it partially open. Ideally, I would like to be able to stop it at any point between open and closed. Do any of you have an ocdc that allows you to do this? I've looked at the manufacturer site, and they seem to be very vague on this. For reasons I'm not getting into, I am not looking for a powered OCDC. I am looking at specifically manual OCDC's.