In Documents, it will be very helpful, if Auto Complete was there, with option to disable it. Other option, if was possible to mark any word to auto complete with a commad, like a Template of Words, e.g., if type a hero name like Pedro, o Magnifico, and set to be bold, and blue color, with a link, when use the command, e.g, Ctrl + Shift + A, a list of Words marked as Template could show, and just type the first letter to show all words that was included in th Words Template (e.g. auto complete of Microsft Visual Code).
This Feature also could be used in the all places of Articy: Draft.