1. Log into your SiteWorx account. (eg: www.example.com:2443/siteworx/ )2. Under "SiteWorx Menu", click the "Hosting Features" menu item if it is not already open.3. Click the "Domain" menu item and then click on the "Subdomain" option.4. Under the "Add a Subdomain" tab, enter your subdomain name in the "Subdomain" field.5. Click on the "Add" button.