We've done this before on the back end, updating tglSegmentCode's Description and/or ShortDesc fields. Usually first import a file containing Natural Acct No and the new values for the description field(s) using SSIS or T-SQL Bulk Insert, then run an UPDATE statement in T-SQL.

Thanks Doug.  I figured that was the only way but it seemed like that should have been there as a feature (which I was hoping I missed.)