Does anyone know if it is possible to edit the document root location for the main domain when creating an account? I assume I need to do this in /var/cpanel/templates/apache2/vhost.default but not sure exactly where. I'm basically trying to edit it so that each domain on an account has it's own directory under public_html. IE:

main domain doc root: public_html/maindomain.com
addon domain doc root: public_html/addondomain.com

I know I can edit the include vhost file but I want this to be permanent and take place when I create an account. Thanks for any help!