OK. I`m fighting hard to find some workarounds for materials/mapping instanced/non-instanced.
I had a nice idea but again RC hits me right in the forehead.

I need to have both Use Segments Materials and regular RC workflow in a single RC object. Of course, this is not possible at the moment so I`ve been thinking about a workaround using Master Style. I`ll set the inverse On/Off parameters on main Generators.
eg:
Single RC object contains Generator A and Generator B.
Generator A - Use Segment Material
Generator B - Usual workflow (materials ID)
Exporting On/Off for Generators and set them to be opposite.
Creating Master Style, using the Parameter to switch generators. (so far so good)
Then I get stuck again: Master Style will also transfer Use Segment Material.
I can break Use Instance Engine, Parameters, Global Scale but I can't break Use Segment Material and Free Object.
I know that is logical to transfer those options but can this be "improved" so Use Segment Materials can be also broken from Master Style?
Best Regards