Re: Same notes/ diff timing - layering - does not work
See: Note Properties
Extra Note Spacing
This option can be used to add space to the left side of a note on the staff. If the note includes an accidental, this space will appear after the accidental space, but before the note head. This is most useful when working with one or more layered staves that overlap each other. A note head can be moved to further to the right to avoid a collision with a note in another staff.