Hint: you're posting your question in the wrong place. RMS is not a CA-7 function, it is a CA-11 function. Perhaps you should start by looking in the CA-11 documentation?
And your Google skills must be so poor as to be non-existent. I Googled ca-7 rms and got 2,730,000 hits back including links to CA documentation. If you have trouble figuring out such a Google command, are you really sure IT is a good career choice? The problems to be resolved get a LOT harder than figuring out what RMS does! And you're showing that you lack the skills to investigate problems, so most of programming and IT are not good spots for you since they require investigative skills.