Humidly automation only give option to set based on "%", not "g/m3"

Humidly automation only give option to set based on "%", not "g/m3"

That means that if I chose 50% it will trigger at much lower values when it's cold and air can hold less moisture.

side note, it should support comparable value to another sensor so that  "g/m3" of two sensors can be compered.