Unable to Fit 3d warehouse textures to drawing

I am working on my first model and I can not get my textures from 3d warehouse to align with the facews properly. Example, trying to fit black metal to my roof

Are you applying it to the component / group or to the face?

As @bmike says - a texture-material applied to a group or component is not editable, but if you apply it onto a face then the context-menu contains Texture for the selected face - making it editable. If the face is inside a group or component, then edit it to access the face and then apply the material onto the face…