Select the equivalence you want to delete from the list.
Select Delete equivalence from the User menu,
or click on the delete the selected equivalence entry toolbar button.
When prompted, click on Yes to confirm the deletion.
Repeat steps 1 through 3 for each equivalence you want to delete.
When done deleting equivalences, select Save from the File
menu. If you do not save the file, either now or when prompted by the User
Equivalence Manager, the deletions you make are not saved.