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Selecting Fields 
...
1. When you have called up the data in your report, choose View ® Choose Fields.
The Selected Fields dialog box appears. The left half of the box shows the fields already selected for display.
2.
To add fields to
the display, select from the list in the right half of the box, then choose
the black arrow pointing left (
Choose).
The fields then appear in the left half of the box and will appear in the display.
3.
To remove fields
from the display, select from the list in the left half of the box, then
choose the black arrow pointing right (
Do not choose)
The fields are deleted from the left half of the box and appear again on the right. They will not appear in the display.
4. To change the sequence of the fields,
a. Select the required field and move it to where you want it to be.
b.
Choose
Move.
The field is inserted above the current position of the cursor.
5. When you have finished, accept your selection.

The project structure
overview (transaction code CN41N) is based on the ALV tree control. To
select, change, save, and manage layouts in the project structure overview,
choose the
Select Layout
pushbutton.
