Features
Improvement of slurs and ties
Voting
Improvement of Gracenotes
Voting
Auto-update plug-ins
Sibelius should automatically notify the user when one or more plug-ins are out-of-date, and then provide the user with the ability to see a list of out-of-date plug-ins, and the ability to select which ones to update to the latest version.
Voting
Slur/Tie over pagebreak
Voting
distance between staves
Yet another thing publishers and engravers are calling for is setting the distance between staves with numeric values in mm, inch or pixel. This is needed to keep the baseline on one page similar to the next. In german this is called "Registerhaltigkeit". When staff-rulers are enabled a doubleclick onto a distance-value could open a box where one can enter the needed value and choose the measurement (mm, inch.etc.) A ...more »
Voting
Improvement of Tuplets
absolute important for engravers and publishers...! The major publishing houses estimated hundred (and more) years ago have to deal with reprinting, re-publishing their old music. In the romantic era it was quite common to write ie. 13 16th in time of a quarter. I have seen this too often to call it a minor effect... The best would be to give the user the possibility to to make a "this instead of that"-decision ie. ...more »
Voting
Improvement of Glissando
Glissando needs an improvement. When one adds a glissando to a note w/o a goal-note playback wont play the glissando. So a fall or gliss-down wont work.
It also would be great to set the startpoint and duration of a glissando.
Example:
When a glissando is added to a whole-note the duration of the glissando covers the complete note-duration, even when the gliss should be played at the very end of a note.
Voting
Positioning of Rehearsal marks

Please enable the user to make different positioning-settings of rehearsal-marks when they are at the beginning of a line.
All publishers I am working for are placing the rehearsalmark above a clef rather than next to it.
Why not setting this up in the rehearsalmark - panel with 2 settings - default and "when at the beginning of a new line"
Voting
Comma, Cesura
Insert commas, cesuras etc. between two notes easily (one keystroke?). A user-defined symbol should be possible, e.g. a small vertical line instead of a comma.
The horizontal position of commas etc. should be automatically adjusted in the score and in the parts. The vertical position should not change during transposition.
Voting
Sibelius scores should embed fonts
At present, Sibelius scores can use any fonts available on the originator's system. But a recipient of that score might not be able to read the Sibelius score correctly as the author intended because the same fonts are not available on the recipient's system. This proposal is that Sibelius score files should embed fonts, on the same basis as PDF files embed fonts so that they can be read on systems that do not contain ...more »
Voting
Left-justified lyrics
At present, Sibelius centres lyric syllables on the owning note. In the case of vocal scores with multiple verses, this leads to a ragged left margin of the first syllables of each verse.
Sibelius should have an option that allows the left-justification of lyric syllables, in particular, those at the starts of verses.
That left-justification should work whether or not the syllable is preceded by a verse number.