The Script Editor does not have an explicit save command. Your changes are saved when you click File, Close. You cannot save progressive versions of the script while you are in the Script Editor.

To cancel all changes you have made since you opened the script in the Script Editor, click File, Revert. Workbench restores your script to the way it appeared when you first displayed it in the Script Editor.

You can save a script to a text file by clicking File, Write Script to File and specifying the name and location of the file.