How do I add a subdomain?

To add a subdomain to you account access to cPanel, scroll down to the DOMAINS sections then click on "Subdomains"

Insert the name of the subdomain you want to create in the box. If you are managing multiple domains on the same account pick the right domain from the domain dropdown. the last field will be automatically filled, but you can edit it if you want. Cliack on Create to add the subdomain to your account