Better default cross-stave notation

(repost from General Discussion)
Moving notes to the stave above or below does not remove the rests, even though there are notes being played in that stave.
Slurs cannot cross staves if the notes are in different staves.
I do not want to have to make all the rests invisible, or manually adjust triplets intersecting with the beams of notes. It would be better if these could be done logically.

Pictures below are in white: desired notation
and
black: MS 4 currently with default settings