Deleting Unused Line Styles from a DWG file.

Hello All,

I work most of the time with DWG files using Microstation (AECOsim BD V8i (select series 4) Vers 8.11.9.593) and was wondering if there is a way to delete unused line styles from a DWG file. There appears to be a problem with Autocad 2013 and 2014 in that DGN line styles accumulate and bloat DWG files, so much so that Autodesk have a hot-fix to compress the affected files:

http://knowledge.autodesk.com/support/autocad/downloads/caas/downloads/content/autocad-C2-AE-dgn-hotfix.html

My question is whether there is a way in Microstation (AECOsim BD V8i (select series 4) Vers 8.11.9.593) to compress DWG files in a similar way. Ticking 'delete unused line styles' in the compress design options does not appear to affect these line styles. Thanks in advance.

Regards,

Lincoln