Making a wet surface material function

I’m using the Soul: City package for a project and I like the wet materials and would like to be able to apply this to custom materials but don’t know how. I tried simple copy/paste but it changes my material’s normals for the other’s. Does anyone knows how to do it or has a way of creating wetness?

I looked yesterday in the material. As i can see, you Need to recreate the material function for the wet Surface. Then you have to blend this function over your own material.

There are some blend nodes you can use. Create a Material for 2-Way Texture Blending | Unreal Engine Documentation

Thanks you very much!