Definitely the easiest "upgrade" of our pop-up, but also one of the most useful!
Put it in place, mark holes, drill pilot holes, install with 2 sheet-metal screws:
I put this on the back of the camper, partly because I thought the metal here would be more structurally sound, but also because it's near the outside camp stove. Everyone knows that you can't cook outdoors without a drink, so this provides easy access to fulfill the requirements of that axiom.