When notes are transferred across to the other staff of multiple-staff instruments, Sibelius places some cautionary accidentals incorrectly.
If a slur either starts or ends on a cross-staff note, then the slur attaches incorrectly to a point where the note would have been on its original staff, had it not been crossed to the other staff. See attached graphic for clarity: the slur shown was created from the third to the fourth note, both of which are cross-staff notes. Originating thread on Sibelius forum: http://www.sibelius.com/cgi-bin/helpcenter/chat/chat.pl?com=thread&start=659333&groupid=3 ...more »
The end of the slur must be attached to the last note, during a cross-staff.
I have not seen a possible way to cross-staff a note that belongs to a chord. The "way around" is changing it to a voice 2 (for instance) and once it becomes a single note, then it can be cross-staff. It would be super! if it can be done just directly. Ex. Cmaj chord, just being able to cross-staff the "G"
In modern music or analysis examples it can happen that cross-staff music goes over several staves. Expanding the sibelius' feature from adjacent staves to more staves would be a big help.
Extending this feature to cross-staff between different instruments would also be a plus - although this notation does occur a very rarely.