To create add-on domains:
- Log into the private server manager (www.yourdomain.com:10000)
- Click on "List domains" and select the appropriate domain
- Choose the domain for which you would like to add-on domain to. You can do that by clicking on "list domains" and selecting the appropriate domain name
- Click "Create Virtual Server"
- Click "Sub-server"
- Enter the 'Domain Name' and 'Description' for the Add-on Domain
- Click "Create Server"