To update a script
Select the script on the Script sheet of the Catalog of Available Fields dialog by clicking it.
Click the Update button on the toolbar of the Catalog of Available Fields dialog.
The Update Script Field dialog is then displayed.
Make the required changes on the dialog. For details about entering the fields, see "Creating a Script", in the previous subsection.
Click the Save button to complete the update of the script. Alternatively, click the Close button without clicking the Save button to abandon your entries.
The script is then updated with your changes.