Bentley Autoplant object interface

I'm working with a client
that has piping designs prepared in Bentley Autoplant SS7, they've provided us with .dwg files of the pipeline layouts. In Bricscad V17, as in previous versions the items are visible as unintelligent bounding boxes. Anyone know how to get Bentley to export with usable blocks? Our intent is to have something we can at least get information from (invert elevation, coordinates etc.

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