If i choose a generic wall, and spilt it into layers, and let say the middle layer is going to be insulation, when i click on the material button nothing happens?, I can't load a material, it's a huge problem, and i have tried to repair revit, and uninstall in then reinstall, didn't work.
And now im running out of ideas, i'm a student and need to use the program, hoping for your help!
Duplicate the Generic Wall, rename it, then go into Edit Structure and add "layers" for various compound materials.
Then click on Material while in Edit Structure.
I have tried the method you described, but when i want to define what the layers consist of, nothing happens when i click on the material button!