In an effort to resolve the clef/space issue, I've been playing around with the order of my layered staves.
Version 1 is the original (the same piece I posted recently for Title Text). The three right-hand, then three left-hand staves are for:
top: adding extra bar lines to use up auto-numbers, to allow a "cut" [bars 13 - 20 have been cut]. This is a work-around because we can't set a specific display value for a particular bar line. I also need to re-start displaying bar 1 at bar 77. I probably don't need the LH top staff.
middle: "cue" staff, with the staff colour a lighter grey - to allow beaming to appear correctly. This is a work-around for complex cue notes.
bottom: the majority of the notation. This needs to go below the grey staff so that the staff lines print in black.
Version 2 has the top three staves in a different order. This is not the staff order I would use, but one I stumbled across. See what happens in Print Preview (page 2).
I've found a quirky and almost insignificant bug. Make sure you know how to Undo. Select (highlight) all of the sample. Click on the dot or double-dot toggle buttons. When the up- and down-stem parts are both notes, or if the up- and down-stem items have different durations, everything works as expected. It only happens when you have a note in one voice and a rest of the same duration in the other.
The rest works fine, but the other voice gets dot-retentive. Any dots the note gains, it never loses! The work-around is simply Undo, or delete the greedy note and replace with one of the correct value.