How to edit a Job script
Once you create a Job script in Talend Studio, you can update it any time using the Repository tree view.
Information noteTip: 
            
	  To edit the Job script of the currently open Job, just select the Jobscript tab and edit it as needed.
Procedure
- In the Repository tree view, expand the nodes.
 - Right-click the Job script you want to modify, and select Edit JobScript from the contextual menu to open the Job script in the workspace.
 - Modify the script as needed and then save it.