obj=obj.addparameter(SCDDSdemo_mdsparnumeric('demo1.params.refmodel.gain','refmodel1.gain','mdshelp','a tunable gain for a referenced subsystem'));
obj=obj.addparameter(SCDDSdemo_mdsparnumeric('demo1.params.refmodel.gain','refmodel2.gain','mdshelp','a tunable gain for another referenced subsystem'));
obj=obj.addparameter(SCDDSdemo_mdsparnumeric('demo1.params.refmodel1.gain','refmodel1.gain','mdshelp','a tunable gain for a referenced subsystem'));
obj=obj.addparameter(SCDDSdemo_mdsparnumeric('demo1.params.refmodel1.gain','refmodel2.gain','mdshelp','a tunable gain for another referenced subsystem'));