HEMS Entities - how to show kW and kWh

Every time I open the HEMS control panel I’m irritated by the charger entity that shows my Emon EVSE charger performance measured in Amps; it would be so much more intuitive and useful for this to display kW. I can do the maths, but shouldn’t have to. Does anyone know how to get an entity that provides kW instead.
And while I’m on the subject of HEMS, I can’t find a way to see how many kWh has been output, cumulatively over time in a single ‘active’ session. Ideally I want to be able to track the charge delivered by the EMON via the HEMS.

It’s omissions like these that make me hanker for the consumer friendly Zappi etc.