docs: public void addListeners()
      {
          super.addListeners();
          this.getMainRecord().addListener(new MessageDetailDefTransHandler(null));
          String strManualTransportID = Integer.toString(((ReferenceField)this.getMainRecord().getField(MessageDetail.MESSAGE_TRANSPORT_ID)).getIDFromCode(MessageTransport.MANUAL));
          this.getMainRecord().getField(MessageDetail.MESSAGE_TRANSPORT_ID).setDefault(strManualTransportID);
      }