I'm planning a new release of the editor in the next few weeks, with which you can try out the event editor, at least as far as the display of events is concerned.
After that I will start editing these events. This is the last big missing feature of the editor. Then it is at least possible to adjust the most important things in the game. Of course I will have to put some effort into the correct composition of the edited data in the ROM, but everything at its time :)
So this screenshot shows the displayed message box properties in the event editor:
