Issue with imported Rhino project...

 From:  sneather
I regularly receive product CAD files from a client from Rhino. At least I assume they're using Rhino, as they're .3dm.
However, one issue I'm encountering is that when I open the files in MOI, I don't get all the various pieces and parts as discrete "object" layers in the browser. Instead, I have to use the "style" tab and select one piece at a time, in order to then save it to a unique object layer.
But when I open the original .3dm file in my Mac Beta Rhino, it looks normal. All the parts are in separate layers. No issues.

Is there a setting I might be missing, inside Rhino, which would make sure that the .3dm file has the separate layers saved so that I can work with it more efficiently in MOI?