separate wipe MFT function or command line option

Would be nice if you could just wipe the MFT's free space by itself. Sounds like the only way to do it currently is a wipe free space on the drive with the MFT option checked, but then you have to cancel the process once it gets past the MFT part.

See below:

http://forum.piriform.com/index.php?s=6b104f44393780c49cecfd0ffd1ad395&showtopic=45513