Add/Remove a DNS record without the GUI
Add
dnscmd [ServerName] /recordadd [ZoneName] [NodeName] RRType> <RRData]
dnscmd UK-WDC01 /RecordAdd edwardsd.local UK-ESX01 A 192.168.1.5
Delete
dnscmd <ServerName> /recorddelete <ZoneName> <NodeName> <RRType> <RRData>[/f]
dnscmd UK-WDC01 /recorddelete edwardsd.local UK-ESX01 A 192.168.1.5
Reference: DNSCMD Examples