To Modify a Named Expression in the Active DGN Library
In the Named Expressions dialog (Drawing > Utilities > Utilities), select the named expression to modify.
Follow steps 3-8 in the procedure To Define a Named Expression to modify any or all of the following components of the selected named expression: Internal Name, External Name, Description, Keywords, Required Symbol Sets, and the Expression itself.
Test and save the modified named expression as described in steps 9-10 in the procedure To Define a Named Expression.