list-windows-above -- List the windows above w from bottom to top.
list-windows-below -- List the windows below w from top to bottom.
lower-window-below -- Restack window W immediately below W2.
raise-window-above -- Restack window W immediately above W2.
lower-by-one -- Lower window W below the next window down that overlaps it.
raise-by-one -- Raise window W above the next window up that overlaps it.