How to edit auto complete list items

Scrivener auto completes character names which is helpful, but now there is an error that causes it to auto complete “John” as “John and Michael…” because that was used once. So it makes writing the character name “John” more work because I have to complete “John” and then a space or it wants to auto fill the wrong name. Anyhow, how can I access or edit the auto complete list?

In Project/Project Settings... or System Preferences/Keyboard/Text.