Step 9A - A-deck prep update
This part of the kit is a real mess. To get the windows and doors right, cut out the sections indicated in step 9A and cement the expanded sections for rooms A-36/37 to the aft sections. For the area of the lounge pantry, there's a lot of cut and paste to be done. The pieces you have include the 10 windows you need, but the spacings are all wrong. The drawing below shows what the kit should look like when done.
The aft windows and doors are mirrors of each other. The center of the aft window is 6mm from the wall of cabin A-37. All windows and the door are then spaced 8mm on center on the starboard side. Add the extra door just left of the aft window. On the port side, the 3 aft windows and the door are the same as the starboard side, but the fore two windows are set closer to the door. Use the center spacings shown.
This area is marginally visible. If you choose to slice and dice, cut off the handrail first, cut and arrange the windows on a piece of paper with the centers marked, and fit the wall sections to properly space the windows. Remember that the door is just cemented over the wall so don't leave a hole for it. Add new hand rails from pulled sprue after filling and filing.
Or, mount a flat wall and paint the windows on.