Absolutely! You can create your server groups through Config -> Servers and click on the Server Groups link in the upper right. Once you've defined your server groups, you can define which group(s) and/or server(s) each zone is hosted on in the Zones page. This can be done when adding new zones or editing the zone properties of existing zones.
Of course, you are not required to create server groups, but they may make it easier to manage your zones.
Ok thanks, Exactly what I was looking for... but failed to see it because I use template and in this case the options are masked.
If I remove the template and assign the zones to "internal servers" it works.
I tried to change it on the template level. I put the template "internal" to the group "Internal servers" but it don't seems to work.
I just add a look in classes/class_buildconf.php the funcion buildZoneConfig look for the field "domain_name_servers" which always "0" when you use a template, so the zone exist for all servers.