Rich_Art,

The lighting settings work on my copy of V3, you have to manually enter one or two of the numbers as the sliders have a fixed range.
but no, the custom UI I made won't work outright in V3.
I'm not going to try to set it up again until the arrival of the final V3. And if Michael has made special permanent changes to the way the icons, commands and general UI system works, ...then I'll have to cross that bridge when I get to it.