lol the diagonal lines are showing which way they open, they're not part of the design! As for the locks, standard multi-point lock that you'd get on any back door (not sure what it's called). Turn key inside to unlock, you can turn the handle up to lock too.Option 1 looks like something you expect in a prison. What locks are on these doors??
That was another reason we elected to brick up the wall and just have one window (you can see on the external pics previously there were more windows), because it gives us two more cabinets in the kitchen.
But he did save as many as he could from below the original window. We're easy compared to other houses he's done around here with big extensions etc.