Assigning Job Documentation 
You want to assign job documentation that already exists, to the change document.
The change document has the status Created and is without errors.
You have not yet assigned job documentation to the change document.
You are in change mode.
The productive system of the assigned logical component matches the IBase component of the change document.
Choose
(Actions).
Choose Assign Job Documentation and then Save.
A dialog box lists existing job documentation.
Select job documentation by double-click.
You have assigned existing job documentation to the change document. The job documentation appears in the document flow.