At the risk of making the Outback Shack look a little like a public toliet, I have installed a Occupied/Vacant turn knob on the door in order to keep it shut, yet allow for access from either side. I am now hoping I don't open the door one day to find a puddle of urine on the other side.
I have installed simple bilateral devices to hold up the doors to the entertainment unit. I eagerly await the next opportunity to work on the Micro Shelter so the next two windows can go in.
On reflection this door and window combination will be just the ticket next Christmas.