Duplicate prefab and duplicate all of it's contents

I'll explain what I'm trying to do. I'm working on an imported asset. I'd like to take some prefabs from that asset and duplicate them so that I can keep the original and also have a copy where I can modify the materials, components, etc. Is there an easy way to do this in unity? Or am I going about this wrong?

 

Did you ever figure this out? Trying to do the same thing.

 

Drag the prefab into your scene. Rename resulting scene object to something else. Drag that object from the scene back to your assets folder. This will result in a duplicated prefab.