--?   print('init:', id)

--?   print('load pane from file')

--?   print('load pane from file', id)

        command.open_file(candidates[1])

        command.open_file_in_next_column(candidates[1])

    command.open_file(args)

    command.open_file_in_next_column(args)

  if column_name == 'recently modified' then
    command.recently_modified()
  elseif file_exists(Directory..column_name) then
    command.open_file(column_name)

  if file_exists(Directory..column_name) then
    local column = {name=column_name}
    local pane = load_pane(column_name)
    table.insert(column, pane)
    table.insert(Surface, column)

    -- helpers that create columns you have to explicitly insert

    -- delegate to one of various helpers based on the column name

  if string.match(column.name, '%S+ from %S+') then

  if column.name == 'recently modified' then
    populate_recently_modified_column(column)
  elseif string.match(column.name, '%S+ from %S+') then

  local column = {name='recently modified'}
  populate_recently_modified_column(column)
  add_column_to_right_of_cursor(column)
  plan_draw()
end
function populate_recently_modified_column(column)

  local column = {name='recently modified'}

  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
  plan_draw()

function command.open_file(filename)

function command.open_file_in_next_column(filename)

  command.open_file(Cache[pane.id].links[rel])

  command.open_file_in_next_column(Cache[pane.id].links[rel])

  command.open_file(pane.id)

  command.open_file_in_next_column(pane.id)