Welcome. Ive been back in that area a few times when I worked at Disney and loved looking around at all of the stuff that's back there. Behind the Central Shops, is the Drydock area for the MK area, where they have enough room to pull all 3 of the ferries out of the water plus all of the other watercraft out there. In between is the body and fender shop where they can paint all of the big stuff like cars, trucks, busses etc. On the right side of the shops is Ride and Show engineering where they develop all of the ride systems at the parks. On the north side is the Christmas shops where all of the Holiday decorations are. For a while before it moved was the original Mainstreet Electrical Parade floats before they went to Cali. were in the drydock area.
