I'd been looking at alot of the Unreal Engine Archviz tutorials, mostly centered around import from 3DS.
https://learn.unrealengine.com/home/LearningPath/90586?r=False&ts=637516509308327332
I had been exporting VWX scenes as .dwg and using the Unreal Engine Beta plugin "Datasmith CAD Importer" to bring the scene into Unreal.
The biggest issue was that all of the geometry was brought in as separate pieces, IE. a shelf created with VWX Shelving Unit tool would come in with all the shelves, side and rear pieces individually so in Unreal you'd have to select multiple meshes at the same time to move the single shelf unit.
Using the new SP3 Datasmith exporter, looks to have exactly the same result, so a window, door, cabinet or any UNIT created by a VWX tool to act as a single unit in VWX, exports to the .udatasmith file and imports into Unreal as a collection of individual meshes.
I had assumed that a VWX Datasmith pipeline would allow export / import of these units AS units, and have multiples of the same unit be recognized as instances which is what appears to happen with the 3DS Datasmith pipeline.
https://learn.unrealengine.com/course/2436637/module/5375271?moduletoken=UHxxnDLPW8QKRagLoM92H41Ml3gdWXuCVq5HhTaJLjIgwKNffDOfVIj523as6Um9&LPId=90586
Does the VWX Datasmith pipeline do these things and I'm missing some procedure to get the functionality?