This is a very cool idea, but unfortunately it is missing three features that would make it far more practical.
1. Pressing right-click on the mouse doesn't close the scene. Not every game uses the "back" touch UI button, so not being able to right-click to close the scene makes it feel very inconsistent compared to other menus in the engine which can all be closed via right-click.
2. The "clear" button is a bit confusing, as it seems like it would just flip to the next page or something. It would be cool if there was an "Up" and "down" button rather than a clear button, so the player can flip back and forth between new/old pages instead.
3. It would be nice to have a script call to push the notepad scene rather than just a plugin command (for custom menus, and easier VisuStella integration). I tried running SceneManager.push(r88_NoteScene), but it says it isn't registered.
I'd be happy to pay for the plugin and make a donation if these features could be added, but right now it feels like it isn't quite there yet.