If you are on the first floor, I assume all these rooms have patios. Can you walk out of the room to the patio and lock the room? Or vice versa, can you come back via the patio door rather than going through the inside corridor? Thanks
You can only lock the patio door from the inside, by flipping the handle. Your key won't lock or unlock the patio door. You certainly can leave and enter from your patio door, but you would have to leave the door unlocked to do this, which I wouldn't recommend.