We have our fasteners in a centralized standard library, that the designer must open the part from when inserting into an assembly. After selecting the intended size from the "Select Instance" dialog, the fastener is then constraigned. If the inserted fastener is modified, that change is updated to the part in the centralized library. I would like the ability to break that link in certain utilizations.
RE: want to break the update link on library parts
You could remove the version number from the filename e.g xx.prt.126 to xx.prt Pro/E will then always grab the non versioned file. An occaisonal purge will remove the unwanted modified versions except the last one.