Not sure... I don't have, and can't have a smart meter so I really have no real idea what the IHD can and can't do. I get everything I need from my manual readings and my Excel spreaadsheets!
@theunknowntech may be able to give more insight as he knows about these things.
Don't shoot me, I'm only the piano player. I DON'T work for or on behalf of EON.Next, but am willing to try and help if I can. Not on mains gas, mobile network or mains drainage. House heated almost entirely by baby dragons.