Assignment Dropbox provides the same functionality as assignment submission in the "File Storage" tool, but with fewer steps and with a more intuitive interface. As an extension of "File Storage", when instructors create an assignment for a group, this group must have "File Storage" enabled, otherwise, the students are not able to submit assignments via Assignment Dropbox. If the Assignment Dropbox module is installed, a drop box is setup automatically when an assignment is created for all students in a course.