Each action item provides it's own set of task management allowing you to manage individual items on a more granular basis.
When creating a task it will slide out a form from the right side of the screen. To save the task simply press the "X" bottom on the slide out.
You can assign yourself or other users to this task. When a task is assigned to a user it will show up in the list on their homepage.
Due dates allow you to set when you wish this task to be completed.
Priority allows you to set the importance of the tasks. Options are None, Low, Medium, and High.