I want to be able to use a rich text editor in the add comment box when grading questions. Here is an example. I would like to type in what this student should have written or at least type in the part of the answer that is incorrect to point out what he should look over again. But I can't because I don't have access to superscript or subscript (kudos for allowing that in the answer they give, by the way). In some situations when a student draws a picture to submit, It would also be nice to draw on the picture they submit or be able to put a picture of me drawing on their answer into the comments as well. Point is: sometimes words aren't enough.