No. For spell checking, you can create the narrative in Word and then cut and paste the text into Workload and Impacts.
Delete all text in the box and click the Save button at the bottom of the page. If you have other impacts or success stories in that focus area make sure they are in the top boxes. In other words, the box that is to be deleted should always be at the bottom of all other text boxes for that Focus Area. You can easily move up an impact by cutting and pasting over the current text.