@**jimlacube **As Rumbleball said you need to create a material that matches with the right parameter names and use that as source material in your “Material Info to Dynamic Material”. Here is my material example:
All those parameters are filled by the importer (if available). Now it depends what you want to use and what your file brings with it. This example is based on an obj import that comes with an mtl file. In my case the mtl file contains all kind of material infos like Ni, Diffuse, TexDiffuse and so on.
As you can see I only use a few (also work in progress) but the material info contains so much more. Just start somewhere but stick to the naming convention that way you make sure the “Material Info to Dynamic Material” replaces/sets the correct values. Whoever created the .gltf and .glb files should be able to tell you what material parameter it provides.