Homekit and light (LUX) sensor

Can anyone help me - I need to have a light (LUX) sensor to control my LuxaFlex Powerview Curtains which are HomeKit enabled. I have tried to buy both Hue Motion sensor and Fibaro Motion sensor which both include the lux sensor. Both shows up fine in the Home App but none of them let me use the light intensity sensor or temp sensor in automations - only the motion sensor can be use.

Can anyone help to provide a solution on how to control the curtains based on light intensity in HomeKit (or when it will be made available). Guess a lot of people would also like to control lights/lamps etc. based on light intensity...

Any help would be really apriciated.

Cheers, Steen