I am wanting to build out facility models that contain ref parts of equipment and personnel. It makes sense to declare the attributes and values of these parts externally and then reference them within the facility model. I find that when I do this I cant view these attributes or their values in the graphical view. Is there a semantic reason for this or is the a way in which I can build out such views that contain these attributes and values?

part manufacturingFacility{

            ref part cuttingMachine [2];

        }

        part cuttingMachine : ManufacturingMachine{

              :>> machineMass = 100 [kg];

        }

        part def ManufacturingMachine{

            attribute machineMass :> mass[1];

        }