I looked through the API and the checkout options. I did not see anything that checked the option to include all related drawings. There seems to be some limits to the Windchill JLink API. I would like to interact with collector and populate a workspace. I could probably do it via PDMLink API code but does that mean an outside connection to the server to populate the workspace or at least, gather a list of items to download individually? If anyone has done down this road, let me know.