• Locate the Package: After installation, the package will be available at: C:\AutoCAD Plant 3D 2026 Content\CPak Common\CustomScripts.

• Register Custom Scripts: Open Autodesk® AutoCAD® Plant 3D™ and any drawing, Type the command: PLANTREGISTERCUSTOMSCRIPTS to register the script. 

• Load the Spec Catalog:
  • Open AutoCAD Plant Spec Editor
  • Open "B16.9 Fittings.pcat" from: C:\AutoCAD Plant 3D 2026 Content\CPak Common\CustomScripts\Cpak B16.9 Fittings Content Pack.
• Start Modeling: Add components from the catalog to your spec and begin modeling. 

For detailed instructions: Please refer to the ReadMe Help Document (PDF) for detailed instructions on correctly setting up the plugin available at: 

"C:\AutoCAD Plant 3D 2026 Content\CPak Common\CustomScripts\PES_

Cpak B16.9 Fittings Content Pack\Cpak B16.9 Fittings Content Pack.pdf".

Uninstallation notes:

To uninstall this content pack, please go to Control Panel => Programs and Features => select the "Cpak B16.9 Fittings Content Pack 2026” => Uninstall