How to add columns to a existing report.
You cannot add columns within the standard reports. You can use reports that have Dynamic at the end of the title. These dynamic reports populate the columns with the attribute data from the view selected.
Some of the dynamic reports specify which columns can be displayed in the description before you run the report (e.g. Planned Orders Dynamic).
Planned Orders (dynamic columns) represents the orders planned on a specified plan with 10 dynamic columns based on what is selected in the Tasks Overview pane. For example, you may display Order Code, Description, Status. Custom order attributes such as Item Code, Description and Quantity. Users can also check Task Start Date, Finish Date, Start Time, End Time and Deadline Date.
Similar scenario with Work To List (Dynamic Columns). The dynamic reports populate the columns with the attribute data from the view selected. This will show each task separately. You still have task op steps (operations), 10, 20 and 30 to be completed, which is why they this works order is still showing on the work list.