If an instructor is utilizing the Groups tool in Blackboard LEARN, it is possible to set up assignment dropboxes that will allow one submission per group. Once a student from a group has submitted, the drop box will close to other members of the group to prevent multiple submissions.
Additionally, when grading group assignments in LEARN, final scores will populate automatically in the Grade Center for all members of the group. Any feedback also becomes available to all members of the group as well, regardless of which group member originally submitted the assignment.
In order to utilize this feature, you must already have groups set up in your LEARN course shell.