I'm still working on the editor though I couldn't find much time for it the last months.
Currently I'm working on events since they are the last major part of the editor which is not working properly yet.
You can now change the script ID and several other propeties of an event. As an example I exchanged the script of Seth's father in South Cape with the script of the bat from the Underground Tunnel.
I also set the enemy's state to that of the boss Castoth.
And here is the result in the game:
