You can add pipe or pipe fittings to a model using the Spec Viewer.
The Spec Viewer uses spec files to control part size, selection, and routing priorities. After opening a spec file, you can view spec sheets, add items to a 3D model, and customize tool palettes.
You can insert a sized part or an unsized part. If you use an object snap to connect to an open port, the size of the port is used. You can set up the program to update a 3D model when changes are made to the spec file.