Stanford instructors have requested the ability to add feedback in the form of an attachment in the Scores pages. Right now, there is only a text field for comments. If an instructor collects an assessment as a file upload, there is no way to return a commented version of that file to the student in the T&Q tool. The instructor would have to use the Drop Box instead. Using two different tools makes it complicated. The reasons some instructors don't want to use Drop Box for assessment submission are the lack of deadline restrictions and the lack of a bulk download function for only that particular assessment.
This feedback option should be in the Questions page and each student's submission page (underneath the Comments box). See attached mockups (taken from Stanford local instance, tool is called Assignments locally).