Only the LedgerMap mark, no name beside it. Lines run from the mark to the desks, the way the mark's own rows turn into mapped paths. A coloured line means the desk opens; a grey dashed line means it is coming. The line of the focused desk carries moving dots. Each design is drawn at a real 1280 × 800 window, as it opens and after one arrow key.
The simpler first round is kept at round1.html.
It is the mark's own drawing made large: rows on the left become paths that land on desks on the right. It reads left to right like a list, so the keys and arrows feel natural, and it still works when a sixth desk is added (one more row).
E, "Night stage", is the most dramatic. A, "Hub", is the most balanced picture. C and D are variations if you want the desks around or below the mark.