For the future... (probably Vrs. 4)
For different, voices in a measure, we can be able to change the position of the notes automatically (as well as the cross-staffed dissonance issue we find all the time), even despite of the individual notes. Very disturbing, and frustrating when you are trying to transcribe a piece (especially a Beethoven piano sonata). I am on a different computer, so I will send a mscz. file later.