Multi currency and totalling costs for location

I live in Switzerland, but I suppose this is true for many Europeans, we travel across different countries on a matter of hours. 

On a regular day I charge 40 kWh at 0.20 Fr. and 40 kWh at 0.40 €. Currency matters.

Neither on the CHARGING SUMMARY nor on the single LOCATION SUMMARY there is a total for the charging costs.