The device can measure power. But, since it’s meant to power lights, I don’t think you need to report the Power to the system. However, it could be nice to get it for each channel.
In VenusOS 3.70 i had the same problem with it only showing RGB controlls. I haven’t checked yet, but i suspect that the Shelly pro RGBWW PM still isn’t supported in v3.80. Will check next week. I hoped that i would be added in v3.80
See this reply by @rzee from Victron explaining it.
I hope he might be able to shed some light on the current RGBWW situation.
I just upgrade to v3.80 final.
light x5 (light) is working well. I have set 2 channels and they appear properly.
I did not test yet the other profile: RGB + CCT (rgbcct)