I also added a set of stairs going down from the crew level to the bottom level. There's already one set going up to the refueling/recreation/exit level. Both have toilets at their base, to use up an odd shape. After adding the stairs, I added a couple of balconies at the top, commonly used for "smoko breaks".
There are already two lift wells, one for passengers, and another for goods. The goods life is big enough to fit a forklift and goods in. But if the power goes off, you need a set of stairs.




