'append (___) (add after repeatedly stepping from cursor)',

  elseif cmd == 'append' then
    command.append_note(args)

end
function command.append_note(rel)
  if rel == nil then
    rel = 'next'
  end
  local pane = Surface[Cursor_pane.col][Cursor_pane.row]
  local curr_id = pane.id
  while true do
    initialize_cache_if_necessary(curr_id)
    local next_id = Cache[curr_id].links[rel]
    if next_id == nil then
      break
    end
    curr_id = next_id
  end
  local filename = os.date('%Y/%m/%d/%H-%M-%S')
  print('creating directory '..Directory..dirname(filename))
  local status = love.filesystem.createDirectory(Directory..dirname(filename))
  assert(status)
  Cache[filename] = {lines={{mode='text', data=''}}, left=0, right=Display_settings.column_width, links={}}
  initialize_file_metadata(Cache[filename])
  local column = {name=filename}
  print('connecting up links')
  local new_pane = load_pane_from_file(filename)
  Cache[curr_id].links[rel] = new_pane.id
  Cache[new_pane.id].links[Opposite[rel]] = curr_id
  table.insert(column, new_pane)
  table.insert(Surface, Cursor_pane.col+1, column)
  Cursor_pane.col = Cursor_pane.col+1
  Cursor_pane.row = 1
  local col_sx = left_edge_sx(Cursor_pane.col)
  if col_sx > Display_settings.x + App.screen.width - Display_settings.column_width then
    Display_settings.x = math.max(0, col_sx + Display_settings.column_width + Margin_right + Padding_horizontal - App.screen.width)
    Display_settings.y = 0
  end
  stop_editing_all()
  new_pane.editable = true
  update_pane_bounds()