In cases where the Model Derivative service isn't extracting enough information from your input files, you have a couple of options:
if your input file is a AutoCAD, Revit, Inventor, or 3ds Max file, consider extracting the additional information using the Design Automation service
if your input file is a PDF, consider:
Also, feel free to shoot us an email to
forge (dot) help (at) autodesk (dot) comso that we can submit a feature request to the Model Derivative team, and inform you of the progress.