Optionalid: stringOptionalsourceDocumentIndex: numberOptionalsourceLabel: stringOptionalname: stringOptionalcolorRgba: ColorRGBAIndex into the sourceDocuments array passed to buildAssemblyDocument.
OptionalsourceOptional OCAF entry string of the label to copy from the source document (e.g. "0:1:1:1"). assembly compound when there are multiple).
OptionalnameOptionalcolor
Imported parts copy a label tree from a source document (typically STEP-loaded) into the new assembly, preserving sub-assembly hierarchy. They become referenceable as a single part (by id) from any instance node.