The documentation is not clear on if ZI supports Segmented Dimming. My assumption is it doesn't, it does not work for me using latest packages and Unity.
Give us as much detail as possible regarding the issue you're experiencing.
Unity Editor version (if applicable): 2022.2.0b4
ML2 OS version:0.53.2
The Lab 2.0 version: 2.0
Zero Iteration Module:3.3.0.