Advanced: This feature of WHM allows you to apply a set of default DNS records everytime you Create a New Account.
If you do not understand that statement, please do NOT use this feature. Instead, contact MIcrohosting support via phone or live chat.
As a reseller you are able to update the default DNS zone template that is used when creating a new account.
Please login to WHM, and in the left menu, go to the "DNS Functions" section and click on the "Edit Zone Templates" link. Here you will see three templates. The standardvirtualftp template is used for every new account. Please choose and edit this template with your custom settings.