Zigbee2Mqtt: Instead of HSB-Color ww2cw

I use a Gledopto GL-C-201p led controller and have it attached via zigbee2mqtt with the help of the homeassistant binding.

The led-stripe that I control isn’t a color stripe, but a cct tunable white stripe.
My problem is that OH gives me a HSB-Color item when I connect to the things color channel, but the “H”ue part of the control is not suitable for a tunable white. As the color is exposed as a combined channel (HSB), I struggle to link a simple slider list item to that item. Is there a way to expose the three controls “H”, “S” and “B” seperately so you can connect a simple slider? I could connect the “Color Picker List Item” and then set what is to be seen as module, but to be honest I would prefer to have one slider for brightness, one for color temperature.

If it is a cct tunable white strip, should you not just connect to the color_temp channel to set the colour temperature from warm to cold white. That, along with the brightness channel should be all required to control CCT strips or bulbs.

yes you can do that but you probably have to use the mqtt-binding with a transformation to connect your saturation dimmer to z2m.
Here you find an example of a “manipulated” color item that sends only hs instead hsb.
https://community.openhab.org/t/oh3-where-is-frontail-and-paper-ui/110792

Just do it the same way with a dimmer instead the color item.