Since the new Advanced Zigbee bulb drivers in 2.2.5 support startLevelChange and stopLevelChange, would it possible to add these commands to group devices?
My use case would be to use a Pico to smoothly raise/lower the level in four grouped zigbee bulbs.
I think I read that this was how Hue worked for dimming groups of Hue bulbs. This is one of the reasons I recently replaced many of my Sylvania A19s with Hue. I know that zgm is much more reliable for me when controlling large groups of lights, and Hue seem to always dim in sync.