How to create DNS zones containing relative names

Hi, not a major issue, but one that niggles me, and I haven’t been able to find an option to control the behaviour.

When I create a new virtual site including DNS zone, the zone file it creates has all the names in it as absolute names:

$ttl 38400 @ IN SOA ns3.softins.co.uk. root.ns3.softins.co.uk. ( 2015121300 10800 3600 604800 38400 ) @ IN NS ns3.softins.co.uk. @ IN NS ns1.softins.co.uk. xyzzy.com. IN A 217.160.239.96 www.xyzzy.com. IN A 217.160.239.96 ftp.xyzzy.com. IN A 217.160.239.96 localhost.xyzzy.com. IN A 127.0.0.1 webmail.xyzzy.com. IN A 217.160.239.96 admin.xyzzy.com. IN A 217.160.239.96 mail.xyzzy.com. IN A 217.160.239.96 xyzzy.com. IN MX 5 mail.xyzzy.com. xyzzy.com. IN TXT "v=spf1 a mx a:xyzzy.com ip4:217.160.239.96 ?all"

Which I find to have a lot of unnecessary repetition of the zone name.

Is there an option to make Virtualmin/Webmin always use relative names in the file so that it instead looks like this? (which in my opinion is clearer and less cluttered)

$ttl 38400 @ IN SOA ns3.softins.co.uk. root.ns3.softins.co.uk. ( 2015121300 10800 3600 604800 38400 ) @ IN NS ns3.softins.co.uk. @ IN NS ns1.softins.co.uk. xyzzy IN A 217.160.239.96 www IN A 217.160.239.96 ftp IN A 217.160.239.96 localhost IN A 127.0.0.1 webmail IN A 217.160.239.96 admin IN A 217.160.239.96 mail IN A 217.160.239.96 @ IN MX 5 mail.xyzzy.com. @ IN TXT "v=spf1 a mx a:xyzzy.com ip4:217.160.239.96 ?all"

Thanks in advance!
Tony