We often need to colorize some layers from our compounded walls, but not all of them. We know that it's possible to do it by modeling simple walls and join them all after placing, but this means increasing the workload and all implied risks when it comes the changes time. That's why it would be much better to modify the materials' patterns instead of overriding their whole visibility without discriminating their layers. The best solution would be to deactivate all layers but one, and override its pattern colour.
This is the main focus, but once opened that capability there will appear new potencial uses for sure.