Energy Dashboard: override units if needed

Hello and thx for this unbelievable piece of software.
I am getting more and more into it and now added a water meter.
Meter itself counts in gallons (1 pulse per gallon) and i live in the us.
But units are set to metric for the whole system.since it makes more sense and i am german.
So when i add the meter to the energy dashboard, it shows the water consumption in liter. And even though that i have everything in the device and so on set to gallons, i have no way to decide that i want gallons.
This should be an optional setting to override the system setting if needed.
Probably also valuable for gas or what else could be shown on that dashboard

Thx alot for considering it