Universal Renamer

Hi

i found awesome script from this guy: https://github.com/cb109/interactive-universal-renamer

Everything fine and works well but i wanted to add one thing there:
I wanted that the script defines all material slots (At least on several main slots: Diffuse, Reflect, refract, bump, Refl gloss) if there is a texture binding and can add suffixes and prefixes for them (if i needed)

For example: if the texture is in the diffuse slot, then i could add the suffix/prefix "D" there, and if the texture is in the bump slot, i could add suffix/prefix "B" Also this rule worked on: objects, materials and files like already works in existing script

Is it possible?
Thanks