You may host multiple domains or create subdomains in your VPS.
Please refer to the steps below to add domain or subdomains in your control panel.
1. Login to your hosting control panel.
2. Click on All Customers link.
3. Click on account username.
4. Click on Domains icon under "System" section.
5. Click Add Domain.
6. Choose the domain type that you wish to add.
Domain: To add new main domain into the account (EG: yournewdomain.com)
Sub-domain: To create subdomains for existing domain name (EG: subdomain.yourdomain.com)
7. On "Add New Domain" page, enter the new domain name/subdomain.
8. Under "Provisioning Options", check on "Create Web Site" and "Enable DNS".
9. Click Add Domain to save the changes.
New domain or subdomain created will appear in the Domains list.