'maximize',

  'maximize note',  -- hard-coded at index 3; see candidates() below

  -- slight context-sensitive tweak

  -- slight context-sensitive tweaks
  if Display_settings.mode == 'normal' then
    Commands[3] = 'maximize note'
  else
    Commands[3] = 'back to surface'
  end

function command.maximize()

function command.maximize_note()

function command.back_to_surface()
  Display_settings.mode = 'normal'
end