@Yoshi_bSJ bSDD services have been refactored extensively, so all the links in this thread are broken.
But Yoshi, I can’t even find “PSet_BeamCommon” that you cited in the new bSDD (I tried several variants).
https://search.bsdd.buildingsmart.org/?SearchText=PSet_BeamCommon&Command=Search&TypeFilter=Classifications&SelectedDomains=
Note: bSDD doesn’t have “PSet” as an object, but ClassificationProperties have a field propertySet
that’s a mere string.
Could you try to find it, and then I’ll analyze what JSON and RDF information is available for that entity? In light of