This part sounds like a no-go. While personally, I don't use CSSU-Settings applet (prefer to edit transitions.ini by hand), why the hell, 3rd party applet meant to ease modifying "hidden" control values, should apply some arbitrary decision of hiding one of such options? Just because it become too popular? No way.

Also, depreciating X-CSSU .desktop file field, sounds like terrible idea. No reason, why people depending on this functionality, should be forced to use something else (whitelist or blacklist in transitions.ini), just for the sake of complicating possibility for enabling forced rotation.
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C'mon people, next day we're going to discuss how to complicate installing rootsh package, just because 80% of people with "help" threads on TMO, messed with their configs/filesystem, by using root access.

/Estel