Had a play with it in HG. Awesome tool so far. Finally a tool to edit attacks.
Here are a few changes which would make it much better:
Text Find & Replace. Would make the text editor much easier to use for certain tasks.
Search for name. When you're searching for a Pokemon or attack it can take forever finding things beginning with common letters like S.
Apart from that though, awesome.
Edit: Also, if you edit a string of text, do you have to keep the total number of characters the same, or can you make it longer?