Portlights are the windows in the cabin from the French ‘porte’ which means door. Ours are stainless steel and open but won’t stay open. Jeff’s cogitating a creative dingle-dongle-thing-a-ma-bobber to hold them up and open. And I may make rubber covers for the locks—I have hit my head on them repeatedly and the boat’s not moving yet, lol. Donny pulled them all out and resealed. No leaks so far!