When I bought mine I ordered two extra interior doors plus matching hardware. The only access to under the pit dinette seats is lifting off the seat cushions, lift the plywood base to store stuff.
Door #1 So I cut a opening just as you enter the RV and placed a door there. I store: Beer stash, lanterns, life vests, tarps, basket of RV cleaners and rags. The other door
Door #2 I installed along the front to access the Pass-thru from the inside. Cost me about $110 for doors and hardware.