[Paul Thompson]

Originally Posted by Brian Bradshaw

I think this is the one you are looking for.

https://www.essemce.se/material/essemce_hexadoor.pdf

Here's a video.
I didn't see how the doors were controlled.

I notice that he has to flip the piece 180 degrees every trip between bench and glory. And the bench looks like it folds up. Made of electrical conduit or something.