code: def open_addnew_win(self, *args, **kwargs):
          
          if self.reftrackadderwin:
              self.reftrackadderwin.close()
          self.reftrackadderwin = ReftrackAdderWin(self.refobjinter, self.root, parent=self)
          self.reftrackadderwin.destroyed.connect(self.addnewwin_destroyed)
          self.reftrackadderwin.show()
docs: Open a new window so the use can choose to add new reftracks
  
          :returns: None
          :rtype: None
          :raises: NotImplementedError