Then I would suggest the old Eyeball Mk II
In the Tag Browser: Right click (authors): Manage
Be sure to check (just do a Search and validate what you see) before you rename. Some Authors use their MI to differentiate from another Author with the same Fn Ln
And some Publishers leave the Initial off
the cover . Gotta love consistancy in the same house
BTW I have to do this with Series. Sometimes I add a 'tie breaker': Series (Authors Initials), to the name. The Paren does not mess the sort.