Zone Doctor and FF6LE Expansion

One of the only things that really tickled my fancy about Zonedoctor vs FF6LE was that one little button for "edit all layers simultaneously". Yeah "real" map editing requires one layer at a time but that little button was nice every now and then whe. I was playing with that one. What are the odds or how hard would it be to work that into FF6LE? (Or is it already there and I just cant read?)

I've never had a look at ZoneDoctor because it didn't liked the expanded ROM I was working with, so I don't really know what you mean exactly. I might have a look at this but it's really not in the scope of what I'm doing here.