A) Click on three vertical ellipsis next to the clue in the ‘QED Clues’ list on the right in  the ‘QED Fishbone’ or ‘QED Clue Board’ screen and choose ‘Edit Clue’ from the drop down list. 

B) Drill down to the clue in the ‘Symptoms’ table in the ‘QED Symptoms’ screen and click on the ‘edit’ icon next to it.