Could we one day get the ability to group notes and assign a special notation feature?
For example:
The notes on the left would be grouped as a slide or gliss to visually appear like the notes on the right. The underlying MIDI would not actually change:
Ideally, a user could then move, stretch, shrink, etc. and the underlying MIDI would move, stretch, shrink together.
Glissando, slides, trills, and tremolos are the most obvious uses for this type of feature, but I imagine others could come up with other examples.