Save When Closing

When processing many small documents in series, then you can switch the editor to save any document on closing the window with no request.

With less but larger documents it's more safe to have a save dialog before closing the window.

Save Without Request: Menu Tools — Preferences — Session — Ask Before Safe.
The menu entry has no hook.
Save With Request: Menu Tools — Preferences — Session — Ask Before Safe.
The menu entry has got a hook.