Design View allows you to upload artifacts, add questions, and designate the flow of your review. Note: Design View includes two modes, one that allows you to Upload Artifacts, and one for adding questions.
When you click on the Upload icon you are able to upload artifacts (PDFs, videos, or URLs). The Question icon (indicated by a “Q”) changes the interface in the right window, allowing you to create questions. Try clicking on both of these icons to familiarize yourself with the views for each.