Importing specific Psets from others

[Moult]

Apologies if I misunderstand - this sounds like a question of how to implement it, not whether it is possible? It certainly sounds possible: the hypothetical software will import an IFC, check matching GUIDs, and merge Psets.

Are you asking for a script that does this? I suspect it would be relatively trivial with IfcOpenShell.

I think this also goes back to my question about including and instancing another IFC file:

How do I include and instance IFC files in other IFC files?

Most text based standards have the ability to include / reference other files and create instances of them. This would be essential if I wanted to be able to create reusable OpenBIM assets in the IFC format. This allows me to have a building-a.ifc that includes and creates 3 instances at different coordinates of a chair.ifc, and then reuse chair.ifc in building-b.ifc. However, from my understanding IFC uses STEP and STEP’s idea of an “include / reference” is essentially a glorified GOTO stateme…

You can vote for that issue - I think it’s the way forward.