How to unlink the scale of opacity channel from bump and colour?

[hannesgrebin]

Wondering how to unlink a texture channel from the others: e.g. opacity from scale of the bump map to control e.g. a segmentation of a wall by driving through a separate texture while maintaining the overall colour (image) and bump and it's corresponding related scale.

thanks a lot, Hannes

[LayC42]

Hello Hannes.

Perhaps an example would be helpful to help you. So we can see the what you'll try to achieve.
And you can I un-check the sync checkbox in every channel.
If you have a pro license, than the material graph would be helpful.