code: def prj_view_seq(self, *args, **kwargs):
          
          if not self.cur_prj:
              return
          i = self.prj_seq_tablev.currentIndex()
          item = i.internalPointer()
          if item:
              seq = item.internal_data()
              self.view_seq(seq)
docs: View the, in the prj_seq_tablev selected, sequence.
  
          :returns: None
          :rtype: None
          :raises: None