code: def replace_cells(self, key, sorted_row_idxs):
          row, col, tab = key
          new_keys = {}
          del_keys = []
          selection = self.grid.actions.get_selection()
          for __row, __col, __tab in self.grid.code_array:
              if __tab == tab and \
                 (not selection or (__row, __col) in selection):
                  new_row = sorted_row_idxs.index(__row)
                  if __row != new_row:
                      new_keys[(new_row, __col, __tab)] = \
                          self.grid.code_array((__row, __col, __tab))
                      del_keys.append((__row, __col, __tab))
          for key in del_keys:
              self.grid.code_array.pop(key)
          for key in new_keys:
              CellActions.set_code(self, key, new_keys[key])