Having established CAD Standards with your level libraries it is useful to keep project data synchronised with those libraries.
To enable level library synchronisation set:
MS_DGNAPPS > synchbylevel
This adds synchbylevel.ma to the MDL applications loaded at start up (synchbylevel.ma is located in C:\Program Files (x86)\Bentley\....\mdlsys\asneeded).
But....you do need to control what is synchronised!