FFVI: Divergent Paths

Yes. You can use FF3usME to edit Divergent Paths. The only thing is that FF3usME will try to relocate a little bit of code that I very much need to stay exactly where it is. So after you are done editing, run the "editor restoration.ips" patch found in the EXTRAS folder. That will fix the code relocation from both FF3usME and FF6LE, and you can apply that patch as many times as you want.

If you haven't run the editor restoration patch, then there are 2 things you'll notice:
1. You can't load the World of Ruin worldmap
2. If you happen to have a savestate inside Duncan's cottage, talking to Vargas will lock your game

Also, here's my official stance on making edits to Divergent Paths: do whatever the heck you want. Seriously, go to town. If it's a small change (ie - rebalancing equipment, changing a handful of spells) please release it as an "addendum" to Divergent Paths, and not as a "complete" patch. If you're doing major changes, like redoing the whole script, you can release it as a complete patch, but please credit me and make sure your readme clearly states your patch is based off of Divergent Paths.