MX String to Openroads Feature

Hi.

I'm using MX Roads SS4.

While importing MX Strings to Openroads feature using "Import Geometry" from General Geometry Tab, only my center line master string having a Geometry string is being converted to Openroads feature properly. Other strings such as Carriageway strings, which are not having an associated geometry strings are not properly converted to Openroads feature, and unable to use Openroads tools or Microstation command on them.

Can anybody suggest me any material to properly convert MX Roads model to Openroads feature so that all strings become usable. The PSS file is already linked to the DGN feature definition.

Thanks in advance.