Please add better MIDI functionality and display to the staff view. Currently the only MIDI control it provides is the pedal.
Volume marks should affect velocity and velocity changes should show up as volume symbols. It should be possible to notate a number of controllers where reasonable.

Velocity controls and controllers similar to prv would be very nice.

One of my personal favorites...

WhatI would really like is something similar to VST expression maps in Cubase. We could then map relevant controllers to music notation symbols. This would allow us to manipulate midi controllers data with notation. The following You Tube video is a very good example of what I mean

http://youtu.be/dFp0Lu8Lh04