Heya,
I've been working on a tool for a few weeks now and I believe it is in a ready enough state to be shown. This software is meant to edit str files, which are mostly used to display skill animations in-game. There may still be bugs left in the tool; reporting them here would be appreciated. You can download the software here:
https://www.mediafire.com/file/epu1pr9xjdneupi
Generic
Ctrl-Z/Ctrl-Y to undo and redo an action.
You can edit most shortcuts via File