How do I set name servers to poin to IP's in WHM, No Root Access

Hi there folks, I would like to set private name servers in WHM 11.34.2 (build 8) to work with accounts I add.
There is Basic Cpanel and WHM Setup, however how do I point at the IP addresses that are required or does this happen automatically. Do I need to get my Domain Registrar to create Private Name Servers for the above.

There is also zamfoo, I have tried this in the past but it doubles up the name servers when you trace the dns and it looks like this
ns1.domain.com.domain..com
ns2.domain.com.domain.com
and I really don't need this happening.

How to sort would be much appreciated as I get very frustrated trying to sort it out.

regards
Rick