Mmmm. That's more of a bad desk design than a layout design problem... A desk with a movable top?? How absurd! I mean, where would you keep your coffee cups, a stack of back issues of MR, a pile of empty decoder envelopes, four unfinished hopper car projects, a zip lock baggie full of old decals, 74 pots of craft paints, your old pair of glasses, a pocket flask full of cheap bourbon, 35 cassettes of new wave and punk bands, a wrist watch with a broken band (I need to fix that), 223 coupler springs, three months of Playboy from 1987, a pile of car cards...
You get the idea...
I've always said, a neat desk is the sign of an idle mind...
Lee