New to FortiGate... registering DHCP Hostnames with DNS?

Moving our office from a pfSense router to a FortiGate 60E.  So far so good, however I can't seem to figure out how to get the DHCP server to register the device hostnames with the fortigate DNS server.  

Resolving internal hostnames works fine as long as the A records are added manually to the DNS database, but it would be nice if records were added as DHCP leases are handed out.  Is this possible with FG?