The data below has lots of spelling errors:
Click on the "..." for the selected column -> Group Values -> Pronunciation
This will open up a window showing you the AIs of the suggested spellings
Click Done. This should take you back to the main screen.
Click on the "..." for the selected column -> Group Values -> Manual Selection
This will open up another window.
Click on the correct/desired spelling -> on the right select all the "incorrect spelling" for that word.
Now the left hand side should only be the correct/desired spelling.
Click Done.
The data has now been cleaned and the spelling all changed.