Greetings,
We had the same problem, only the parameter for "Door belongs to the Zone where Marker is Placed" was missing. So you could not place a reverse handed door and associate the door with the room you are swinging out from. The mirror / flip / mirror operation fixed the situation and restored the parameter in the dialog box and allowed us to move the marker to the needed side to get the correct number. We will see how this schedules.
DWyckoff
Master of Time and Space
Whenever the wife lets me
A/C27, OSX12.7.5