I shot a boxing card, downloaded my .CR2's, pre-created my IPTC data files, culled and renamed and totally forgot to apply the IPTC data. I then processed the files in Lightroom making numerous adjustments. Now I would like to add the IPTC data to the .CR2's but I believe that if I do so I will re-write the .xmp files and lose all my LR modifications. Is there a way to ask PhotoMechanic to ADD IPTC data rather than replacing the .xmp file? I am on the current version of PM and LR 3.2.