I was able to find out a couple of interesting bits of information by carefully perusing the diagrams--including the answer to a question that has been bugging me.
The cover over the gas cap has no keyhole in it, the way my Gold Wing did. So how do you open the cover?
It seems that there is a keyhole located just below the driver's part of the seat, on the left side. Inserting the bike's key and turning it counterclockwise pops open the gas cap hatch. Inside that is a tethered cap that unscrews (like a car). There is a little holder built into the inside of the hatch cover to hold the gas cap when it is removed--a nice touch.
That keyhole has a second purpose. Turning the key CLOCKWISE unlatches the seat. This is a GREAT feature as far as I'm concerned because I have done a fair amount of electrical work on my Shadow and unbolting the seat to get to the area underneath (where most of my electrical add-ons live) was kind of a pain.
I guess one reason they made it easy to remove the seat is because the hooks to hang a helmet on are located under the seat. I do NOT like this feature. Yes, I know the saddlebags are supposed to be big enough to hold "many full-face helmets". But I have a large head and wear a size 3XL helmet, plus I have a Sena Bluetooth adapter clamped onto the side. There is a pretty good chance that my helmet won't fit in the saddlebag, so I may have to come up with an alternative.