Ottava and crossstaff notes.
The ottava won’t apply to the lower staff, and there’s no way to add an ottava to the lower staff and hide it that I can figure out.
Ottava and crossstaff notes.
The ottava won’t apply to the lower staff, and there’s no way to add an ottava to the lower staff and hide it that I can figure out.
But no, there isn’t a legitimate way of introducing and then hiding an ottava line. I suppose you may be able to scale down and colour white, but that’s not an official method.