# File control/AliasMap/AliasMap.rb, line 88
  def entry_down
    unless (entry_down_disabled?) then
      i = @entry_down_call_index
      j = i + 1
      @alias_list[i], @alias_list[j] = @alias_list[j], @alias_list[i]
      @control.set_aliases(@alias_list)
    end
    nil
  end