To add a domain to a hosting account:
1. log in to the cPanel panel
add a domain as "addon domain" or "Alias" (Differences about this two types you can read here)
2. when the domain is added in the panel, it will be automatically added to our dns servers
3. in the domain management panel of the register, indicate that the domain is on external dns servers and enter our dns servers (obligatory two or three is optional):
4. if the domain was registered, it should be visible immediately. If it was moved from another server - its full propagation on the Internet can take up to 24 hours.