Rhino to MicroStation and return

I have not been able to seamlessly do this transfer back and forth to Bentley MicroStation. Recently I have been learning Rhino 6 and Grasshopper, which is so much more attractive to use than Bentley’s corresponding parametric tool, Generative Components. Although Rhino has all the features you can imagine, the facility of operation with MS after so many CAD years makes me want the best of the two worlds. For example, the MS clever system of reference files, the interface customizing capabilities …
I’m sure there are users in this forum who know how to do this export/import without losing too many settings on the trip. Grateful for recommendations, Ingemar