Hi, I have a 6ft sliding patio door that opens up to a screen porch. We would love to have a door that completely opens, which would give us nearly 6ft of open space. I've looked online, and the doors I see can only open and fold straight out at 90º or so. We would need somethings that folds out and all the back 180º against the exterior wall so it doesn't take up much space inside the porch. Is anyone aware of such a door? Thanks!