FS-CD Full reversal of Mass Clearing run

Is there a way that a full reversal of a mass clearing can be accomplished? IE in our QA environment I ran tcode: FPMA Clearing Variant CLRM1 Date ID 11/02/2015 Identification MCT01 for some testing.

I would like to reverse all of the mass clearing that occurred with this, make a change to my clearing variant and then run again against the same data. I have not been able to find a tcode or process that I can do this with.

Thank you,