When you are assigned a Task, once you have completed the Task you can mark it as Complete by going to the list of Tasks in that Stage, and then clicking on the empty TO DO box beside the Task you have just completed. Here Jill has been assigned the last Task on the list. Once she has completed it, she can click on the empty To Do box beside the Task description to change the status to Complete. By clicking on the To Do box, a tick is marked in the To Do box and the Task is moved to the Complete Section.
Once Jill has ticked the To Do button, her Task moves to the Complete section and will no longer show as an outstanding Task on any Dashboard.