For context, I am using Blenderkit materials here. So, I have a wall, which i have divided in two parts, the top and bottom one.

My goal is to use the same material but change the color of the bottom part, similar to what's happening here.
How would i achieve this? The problem I'm running into is that if i try to create a new material and assign it to the bottom part, once I drag in the same material from Blenderkit, both become connected, so changing the bottom's color will change the top one aswell.
Here is the node setup for the material. Would appreciate some help as i run into this problem quite often!











