Update linestyles from dgnlib

Hallo,

Is there a way to update linestyles in a DGN file from a dgnlib, more or less in the same way as it is possible to update levels and textstyles from a dgn library? I know there is a way to update linestyles from a rsc file, but this is in my situation not possible, Or is there a way to delete all old linestyle definitions (used and unused) from a dgn and recreate them on the fly?

Reason behind this question is that users have old files with old linestyles. In their new environment the want to use the new linestyles, but because the old linestyles already exist in the dgn, lines stay displayed with the old linestyles. They have no clue (or possibilities) to find out what rsc file the have to update from while textstyles or levels can by simply updated with one button/command. 

Cheers,

Paul

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