Piling
When a user task is defined in a process template, the designer specifies whether or not work items generated from that user task should be piled. If they are piled, when you cancel, close, or submit a work item generated by that user task, Openspace searches through your work list to see if there are any other work items from that user task. If it finds one, it automatically, opens it. If there are no more work items, you are returned to the Work Views gadget.
This feature allows the system to be designed so that if your job entails processing a certain type of work item, Openspace automatically opens work items of that type, without requiring you to continually select work items from your work item list — as if you are working on a pile of work items.