It is much more convenient to have the back of the parcel shelf/rear deck lift out of the way when reaching into the back of the trunk. I put together a few simple items to have a very adjustable solution that in no way permanently modified anything on the car. The shelf can also still be removed easily. Required items: Small black line (micro paracord) 4x small plastic barrel cord locks (4 is not required, 2 or even 1 would do) 2x small plastic buckles 2x strips of velcro tape (or more) (at least the hook half) 2x strips of heavy duty tape (duct/hvac tape works very well, electrical tape may also work) Remove the shelf to install. The idea is that the line connects to each side of the rear hatch and passes under the hinged part of the shelf. The buckles make it removable and the cord locks are used to adjust it. The line basically makes a big loop, passing through the buckles. Lock in the length by using two cord locks to connect the two ends. Two more cord locks can be added on either end of each buckle just to keep it in place but this is not necessary. For me, when the loop was laid across the bottom of the shelf, it extended several inches past on each side. Use the velcro strips to keep both sides of the loop in place near the rear edge of the hinged shelf. On the rear hatch mount a small loop of the line, going through the other half of the buckle. To keep it from slipping I hooked it on something for the tape to hold. I used a part of a nylon zip-tie, but anything should work (toothpick, wire, maybe just a big knot in the cord). In my case, I found that where I attached on the rear hatch was probably too far forward. I will probably move this back an inch or two at some point. These instructions are not very detailed, I know. I could provide specifics if anyone is interested. I notice that EVAnnex also has a similar solution: Parcel Shelf Auto Lift for Tesla Model S This looks about the same for pretty cheap ($25). Not sure how adjustable it is or if it requires anything to be permanently installed. Seems like a good option to avoid DIY'ing.