You'll need a custom script for that if you can't find any (doubt you will). Now's a good time to get into scripting and do it yourself, great way to expand you skillset ;)
I'm asking this on behalf of someone else. Is there any way to convert a multi-sub object material, made up of many directx shaders in to standard Max materials, keeping the textures in place when converted? It's quite a simple DX shader that only has a diffuse map slot. The reason being is that the models need to be…