DNS resolving is one of the main thing to make your website works. To change DNS Zone in Cpanel, they are easy.
Login to CPanel
Find Domain Panel
Choose Zone Editor to edit DNS
To add New DNS Records, you can add by using + buttons. If you want to manage or change dns records, click Manage.
You can edit each DNS zone here and you can save to update DNS records. DNS record update may require up to 48 hours of time to update across the globe.