public StateInteractive cutout_items(){
  return StateSelecRegionCutout.get_instance(items_list,return_state,i_brd,actlog);
}

public StateInteractive cutout_items ( ) { return StateSelecRegionCutout . get_instance ( items_list , return_state , i_brd , actlog ) ; }
deletes all unfixed items in this selected set inside a rectangle
