https://www.whiteblaze.net/forum/showthread.php/125826-Zpacks-Duplex-Door-Mod
Purchase 2 sets of Zpacks peel and stick toggles and mount them midway up the downwind doors, in-line with the stock door toggles and the lower corner of the door.
https://zpacks.com/products/stick-on-toggle-clear-white
Just do one door on each side.
Gives you more ventilation while keeping privacy.