If you want to turn it on (or off) for all materials, can you use a generic term in a script to apply to all materials in a prop or figure?

For instance, I have some prop plants with materials for stem, leaves, center and petals.  Other plants have materials with variations on those material names.  I want to turn on Normals_Forward for all of these materials but without having a special script for each material name.  I've never written any Python scripts but from looking at some it looks like you should be able to gather all the material names in a prop or figure first and run the set Normals_Forward on against all the names of materials like setting all materials to white or such, but what do I know...  Is this a doable thing?

Thanks so much for responding, y'all.