I bought a couple of RGBW 2 modules to test out and have come across a number of "features" that I'm hoping someone can confirm:   1. There appears to be no option for momentary switch plus rainbow mode form a single wall switch Where I have RGBW strips I guess I can connect to IN4 (by setting parm 150 to HSB and White mode) and control only the white channel from the wall switch and then control colours from Alexa, scenes or the BUI / Mobile interface.   2. The way the