How do I ad my domain

[radiogrooves81]

I have a domain name of www.radiogrooves.org.uk how do I point my subdomain to it?

[vv.bbcc19]

Hi,
This is a two step process.
First configure the domain to DNS servers
ns1.x10hosting.com
ns2.x10hosting.com

Then from cpanel go to any of Addon domains or Parked domains or Subdomains and add your respective domain to them and configure it from the settings you get in cPanel.