This topic goes hand-in-hand with Master Materials.

Master Materials are the “parent” materials, while Material Instances are “child” materials. They are duplications of the parent that let you adjust custom parameters without modifying the original.

In my project, I created different instances of the parent window material, and applied different image textures to each instance, to create different windows easily.

Insert a screenshot of creating an instance…

Insert video here.

Again, I am still learning, this is just what has helped me. If anybody has any feedback, reply below.