I’m trying to duplicate this passage where all the notes (in both clefs, rh & lh piano) are 8va as indicated by a single 8va above the top staff. The first image shows the notes after being entered and 8va added. The 2nd image shows what happens when I move the notes using the “M” key to invoke cross-staff to the bottom clef. The final image shows what it should look like. Any suggestions? Other posts about this issue don’t help.
I bumped into the same once. Created a note at the beginning of the first bar upper staff using a different voice. Customised scale to 1, what made it invisible. Than dragged the starting point of the 8va mark above and done. It worked me well, not sure this description is clear enough though.
If you want the lower staff to also follow the 8va then I thought you were supposed to add an extra 8va above the lower staff (and so Dorico default behaviour is correct). You can do that (along the lines suggested by @kaposi.g) by adding extra notes in the lower staff, add the 8va to them then delete the notes. In my test the cross-staffed notes obeyed the new 8va which stayed in place even after deleting the lower-staff notes.
I agree, an 8va above the LH clef is textbook correct. However, many, many piano publications do it the way I want to do it. I would argue it is standard in a niche situation like this. Putting the 8va above the LH part just looks bad and wrong to my experienced pianist’s eyes. I just can’t think of any cross-staff pieces with the 8va above both staves. I’m sure they exist, but I can’t remember any. The only real option Dorico provides is to lower the LH notes an octave lower so that it looks right (but plays back wrong).
The 8va marking does move over, but the notes in the LH are still in the wrong octave, plus there’s all the rests in the new voice to remove.
Do you want to play the music, as well? If so, have no idea. If it is only about visual you can move the first two notes an octave lower, and that’s it.
Rests are not a problem, you can make them invisible. Edit > remove rests


