I have never seen, in print, any mention of a little hidden shelf behind the convertible's faceplate between seatbacks. A raised lip around the perimeter is apparently to stop things from sliding off. Is there a purpose other than extra storage? My arm can't reach it while seated; have to get out to reach in. Anyone know what's behind that beautiful, slick panel? Looks like it should open into a neat little compartment, if only for papers or maps.