Default Please help with Sansung Galaxy Grand Duos GT=I9082

Hi there

I am new here and this is my first so please go easy on me and forgive my ignorance. I have a Samsung Galaxy Grand Duos GT=I9082 running Jellybean 4.2.2 . I have just rooted my phone for the first time ever with help of reading in the forums on here.
I have CWM installed and supersu as well.
What I am having a problem with is how to get supersu or any app I want to come up in the settings menu listed under system manager. I an aware its in application manager if I wish to uninstall but I would like to have for example supersu under system manager so I can tap and launch the program instead of having the icon the screen.
Could somebody please advise me on how I can do this or at least steer me in the right direction to a how to guide or even a program via windows pc or app on phone which can do this

Any help anyone can provide would be do much appreciated.

Thank you in advance