Multiple IP addresses for devices?

Does anyone know how to assign multiple IP addresses to a device in MAAS. I only have one interface plugged in to my network, but my network speaks both kinds of IP. I don’t see a way in the GUI to have more that one IP address.

Every time I add the IPv4 address the IPv6 address disappears and every time I add the IPv6 address, the IPv4 address disappears.

Does the CLI have some magic that might help me?

Cheers,
Lloyd

I seem to be getting the hang of (the easy parts of) the MAAS CLI.

maas PROFILE interface link-subnet SYSTEM-ID INTERFACE-ID mode=STATIC subnet=1 ip_address=10.0.1.195