Once you create a Job script in your Talend Studio, you can update it any time using the Repository tree view.
To edit the Job script of the currently open Job, just select the Jobscript tab and edit it as needed.
- 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.