325: Lines - cannot extend or retract lines (including slurs) in the final bar of the score using Space/Shift-space

Due to a minor problem in Sibelius 2.11, lines (such as slurs, hairpins, trills, pedal markings, and so on) cannot be extended using the Space and Shift-space keyboard shortcuts when they occur in the final bar of the score.

This problem is corrected in all subsequent versions, so you should upgrade now.

Alternatively, you can temporarily add an extra bar to the end of your score (hit Command-B or Ctrl+B) until you have finished editing lines, then delete it again (hit Esc to ensure nothing is selected, then Command-click or Ctrl+click the extra bar so that it is selected with a double blue box, and finally hit Delete).