No, there’s no built-in way to do this at the moment, I’m afraid.
I’d argue that while that is a legitimate example from published music it barely adds any useful performance or readability information to the pianist, given the large brace already there, and personally I would not be trying to do that.
I use three staves all the time for piano without feeling the need for that. Just a couple of cents worth!
1 Like
Another way (better, IMO): In Rachmaninoff’s famous C♯ minor prelude, when it goes to 4 staves the barlines are connected between pairs of staves for each hand.
Hi everybody,
I’m reading through this thread, and I’m still not clear at this date: is there a way to increase or decrease the number of staves in a piano part in the course of one piece? For instance, the piece starts with 2 staves, increases to 3 at one point, then goes back to 2 later?
1 Like
Debussy ? 
May be this can help you ?
Portées supplémentaires
1 Like
Yes! I think that will do it! Thank you!