After editing the configuration, the save script tab shows the commands that would be sent to the router if the current edits were saved to the router.

The save script shown is similar to using show | compare from the Junos® CLI. For example, it may be reviewed prior to committing a change to the router, for extra confidence.

Double clicking on a word goes to the source of the change, back in the configuration editor.

Another way to review the current configuration changes is from the compare viewer.