Now, when you create a new domain, it will copy many settings from the template zone if defined. This affect the interactive and command line mode.
The following command line still work:
/sbin/dnsconf --newdomain new_domain template_domain
but if you omit the template_domain argument, then the one specified in the features dialog will be used. This should ease your work a bit.
Now a zone is updated only if it was changed.