Please excuse me if I'm not my usual sunny self.
I have another suggestion. Why not make some sort of shortcut to get to certain dialogue entries in the "messages" menu, at least for banks 1 through 3?
The reason I bring this up is because in my project, I'm currently editing dialogue a lot. Sometimes the editor crashes from me trying to delete too much dialogue at once, and I have to reload and scroll, one increment at a time, to get back to my place at message, say, 330 from message 1. I can just hold down the arrow key, yes, but it lags and it keeps scrolling moments after I've let go.
The kind of shortcut I suggest is typing in the number would take you to the specified message, e.g. pressing 459 would take you to message 459.