creating a nonstandard key signature
I think this feature still hasn't been implemented in Sibelius (7.5 at least). Presumably not enough call for it.
Here's a suggested workaround from way back when: http://www.sibeliusforum.com/viewtopic.php?t=4998
And from the 'official' Sibelius forum: http://www.sibelius.com/cgi-bin/helpcen ... 3&&guest=1
Here's a suggested workaround from way back when: http://www.sibeliusforum.com/viewtopic.php?t=4998
And from the 'official' Sibelius forum: http://www.sibelius.com/cgi-bin/helpcen ... 3&&guest=1
Sibelius 6.2, 7.5.1, Windows 11