'move column ___ (after given index; 1 by default)',

  elseif cmd == 'move column' then
    command.move_column(args)

-- move column to _after_ index
function command.move_column(index)
  if index == nil then index = 1 end
  if Cursor_pane.col < 1 then
    add_error('no current column')
    return
  end
  local column = Surface[Cursor_pane.col]
  table.remove(Surface, Cursor_pane.col)
  table.insert(Surface, index+1, column)
  Cursor_pane.col = index+1
  bring_cursor_column_on_screen()
  bring_cursor_of_cursor_pane_in_view('down')
  plan_draw()
end

  if col_sx > Display_settings.x + App.screen.width - Display_settings.column_width then

  if col_sx < Display_settings.x or col_sx > Display_settings.x + App.screen.width - Display_settings.column_width then