I will try this thing. I’ll probably add CTRL SHIFT + Wheel to transpose notes, but this will take a while, no promises though.
In fact, the PRS works very well with the very small zoom. even I myself was surprised at its precision. However, it is very important to have a high-performance mouse for this kind of thing.
No, this is not possible. In playback mode it is only possible to “locate” notes. It does not allow editing on purpose for several reasons (security and performance).