I'm not aware of any.
In fact, most settings in Mac OS control panels are not scriptable. I wish they were, and I have been semi-crusading on several AppleScript lists for a year to have that happen. It would make disk imaging setups (see my MacSetup page at <http://macsetup.editthispage.com/> ) and automated configuration of Macs a lot simpler (and possibly cheaper) for system administrators.
But Apple doesn't really play to the sys admin market much. Oh well.
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Jeremy J. Reichman, aka "Jaharmi"