I'm not sure you understand what you are talking about... What is roll centre and what causes camber change?
It's quite hard to change one of them without the other. It's possible, but requires moving at least 2 pivot locations. Usually, when you change just one pivot location, both of them change. How can you have roll center change possibility and NOT have camber change adjustment possibility is beyond my imagination
Another thing is that nobody _talks_ about camber change adjustments any more, but that doesn't mean it can't be changed.