Well, another thing is that most of the things that can be done by hex can now be done with tools found at ProjectPokemon's forums. TM/HM compatability Editing technically has a tool, but last I checked It was extremely buggy and prevented you from editing the first 8 TMs. So I usually do that by Hex. The only other thing really of any worth knowing nowadays in Hex is how to edit the Item locations, since there's no tool for that yet.