Yes that's correct the sealed box is the third box in a stack of three .......And it's right where the butt of the rifle is in the fake in situ photo ....
The primary boxes north of the rifle are a row that's three-wide by two-high. They're all open in all the photos. What you pointing to is sealed box that on top of two others; it's sealed in all the photos.
And in place of the sealed box is a open box.
No. The three open boxes don't move and the sealed box remains sealed.
And where did the bright sunshine go?? In the photo with the blue arrows there is bright sunshine streaming through the window that is just a few feet west of the area.... But in the fake photo there is only camera flash illuminating the area.
Sunlight didn't get enough to the west side of the building for light to reach the tall stack until, I guess, 2:30 or later.
Studebaker took his in-situ photos about 1:25. The Alyea film shows no sunlight on the tall stack of boxes; Day had to take the rifle over to the window to see it better.
The sun also had to reach around the tall stack of carton on the pallet by the window. The post-discovery photos that have sunlight were taken much later than the in-situ photos.