code: public void addMasterListeners()
      {
          super.addMasterListeners();
          PropertiesField fldProperties = (PropertiesField)this.getField(Script.PROPERTIES);
          fldProperties.addPropertiesFieldBehavior(this.getField(Script.SOURCE_PARAM), SOURCE_PARAM);
          fldProperties.addPropertiesFieldBehavior(this.getField(Script.DESTINATION_PARAM), DESTINATION_PARAM);
      }
docs: AddMasterListeners Method.