མཐུད་སྣེ་འགྲེལ་བྱང་།: user nicename
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Edit Author Slug
Allows an admin (or capable user) to edit the author slug of a user, and change the author base.
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SlugMaster – Author Slug & Post Slug Customizer
Customize author slug, user nicename, author archive, and custom slug URLs with full WordPress route control.