The goal of this is to reverse certain changes to 2da files without completely having to rollback to another one. For instance, you may have installed a mod that makes some changes to your 2da's that you want to keep, but just not all of them. I noticed a thread where someone wanted to backtrack because they didn't like the Revan Cutscene style robes. Not that I blame them - I like the robes, just not the model (what with the head clipping and all.) Of course, you can make all these reversals by hand, but this is meant to be a time saver. And not everyone may know how to do these things.
So far 2 changes can be applied:
1) You can reverse the Revan Cutscene style model in the modelj and texj columns to the original game defaults. (A change which at least one of MY mods makes.)
2) You can reverse changes to the envmap column back to the original game defaults. (note that this will break at least half of MY mods.)
These changes only affect pc's and npc's in K1 and just pc's in K2.
Suggestions for other fixes are welcome, so long as they aren't simple things that someone can do in the kotor tool 2da editor in less than a minute. If it seems worthwhile, I'll make a patch for it, and update the mod.
Props to Stoffe and her TSLPatcher
From my FileFront page.