It would really help my prep and play experience if I were able to type in notes, which would then be revealed on mouseover to the GM only during play. So like I could place a number key on the GM layer, that would pop up the boxed text for that room when I hovered over it with my mouse. This would allow me to not be constantly alt tabbing out to my pdfs/prep notes while I'm running the game, and it would also help my workflow during adventure prep.