Problem with polygons in Bentley Map/PowerMap

Hello Bentley Communities!

I've got a problem. I've got a dgn file *** has been opened and worked on in PowerMap V8.1. There are typical polygons with very important for me User Atrribute (look at the attached pic - I know that my Attribute has ID 889 and is in hex format). Now I open this file in Bentley Map SS3 and I see not simple poylygons but every polygon is a polygon collection with one sub-feature. In BM SS3 I've got a vb script *** copies my User Attribute to table in a database, but it  doesn't work well *** these polygon collections. I think solution for me would be a macro in PowerMap to label polygons with these User Attribute, but I don't know how to write it  :-P

Any solutionts?

Thank's and regards