Reasons for hiding a name
Because you don't want to lose all of your historical transactions, you don't
want to delete a name just because you aren't using it anymore. It's better
to hide the name in your other names list by making it inactive.
You can reactivate (show) a name or see all other names at any time.
Click the Lists menu, and then click Other Names.
Double-click the name you want to hide.
In the Edit Name window, select Name
Other ways to remove a name
Show a name in the list again