Scold me if I haven’t looked thoroughly enough, but... How can I remove incorrectly assigned aliases? Can this be done via the UI, or should I adjust the JSON export?

I tried to remove the assigned “pen-name” string from the textfield, but when I store the person’s metadata, the old entry keeps assigned.

Next (actually a separate question), is it possible to add more than one pen-name/alias to an author? This could be particularly interesting for Russian authors, for which a wide variety of transcriptions exist.