Insert 2 toggles through the four options (characters, words, characters and words, none), but is temporary. For a permanent change:
While in Word, hit Insert 6 to get to setting center.
If you only want to do this for Word, type echo in the search box. If you want to make this default, hit control shift D first.
Down arrow to typing echo and space bar through the four choices to the one you want.
Tab to OK and hit enter.
This is now your default typing echo.