Used Microsoft Access to open the Assets.mdb database; go to the Assets table, go to the PresentLocation column (next to 'Amount Paid' column), Sort the PresentLocation, A-Z, scroll down to the entries of the ones you want to modify.
Modify one entry and copy it to the others, save the database.
As always, make a backup of the database before any modifications.
Hope this helps anyone else in the same boat.