I changed my VP2 6152 ISS to a Plus this spring.
My Cumulus 1 is connected through Envoy/USB and started to show solar and UV when I changed the ISS.
In the testing of WiFiLogger I am using a Vue console receiving from the same ISS and using CumulusMX.
The monthly data logs for both programs now show the UV Index, Solar Radiation, ET, Annual ET, and Theoretical max solar.
The uploads from both USB/Envoy and WiFiLogger/Vue each stated to include UV and Solar where that is included in their pages - i.e. WU
Enjoy,Paul