About Catalog Parts
Catalog parts that you open in Creo have a label in the bottom right corner of the Creo graphics window.
* 
Downloaded catalog parts are read-only in Creo.
You can save a catalog part to a different name. This enables you to modify the renamed part.
The catalog part "remembers" its catalog page. A special model parameter stores the link to the source catalog page:
ptc_catalog_part_url=http://www.ptc.com
Using the ptc_catalog_part_url parameter, you can reference the source catalog page in the model notes, a drawing, or a report. You can view a link to the catalog page in the Relation and Parameter information.
Passing Catalog Parts Parameters to the PDM System
When you save an assembly with a downloaded part to the PDM system, all designated parameters of the downloaded catalog part are passed to the PDM system.
You can view the following properties on the Windchill Properties page:
ptc_catalog_part
ptc_catalog_part_lastmodified
ptc_catalog_part_dictionary
ptc_catalog_part_url