Musescore 2.0 beta 2
Mac OS X Yosemite 10.10.2
I have not customized any keys, next to the play panel option, it displays the shortcut F11
And yes, I am pressing Fn while pressing F11.
Actually, this has been bothering me too. Thomas and Jojo-Schmitz guessed right: On a modern Mac keyboard, all the function keys except F5 and F6 are permanently assigned to specific system-wide actions (a picture of the keys, which have little icons showing their behavior: http://images.techhive.com/images/article/2012/10/keyboardcaption-10001… ), so they don't work to do what MuseScore wants them to do. You can indeed set a different keyboard shortcut for those things in Preferences > Shortcuts by double-clicking on a given command and entering what you'd like instead (which is ultimately what I've had to do for that thing with the supposed Ins key: http://musescore.org/en/node/36106#comment-188706 ), but it would be better if out of the box those actions were assigned to shortcuts that worked.
Comments
It does for me (55d962f, Windows 7), so you'd need to be more specific: which version of MuseScore, what operating system
Also what keyboard layout, and are you sure you haven't customzied your keyboard shortcuts and reassigned that.
Musescore 2.0 beta 2
Mac OS X Yosemite 10.10.2
I have not customized any keys, next to the play panel option, it displays the shortcut F11
And yes, I am pressing Fn while pressing F11.
So it is probably Mac specific?
See a similar bug report and a potential solution at http://stackoverflow.com/questions/25852370/keyboard-shortcuts-function…
Note: when checking other software on Mac OS X, none of them used the function keys, so perhaps Mac OS X advises not to use the function keys?
So only F11and F12 are affected on Mac, right?
Guess it is the same issue as it had been with 1.x, and there different shortcuts had been used, see http://musescore.org/en/handbook/keyboard-shortcuts#Display.
And here's the corresponding (but possibly incorrecte) handbook page for 2.0:
http://musescore.org/en/node/36096#display
@Jojo yes, non of the Mac shortcuts listed under http://musescore.org/en/node/36096#display work for me.
I believe I noticed this a while ago, but was maybe told to re-assign them (I think).
Actually, this has been bothering me too. Thomas and Jojo-Schmitz guessed right: On a modern Mac keyboard, all the function keys except F5 and F6 are permanently assigned to specific system-wide actions (a picture of the keys, which have little icons showing their behavior: http://images.techhive.com/images/article/2012/10/keyboardcaption-10001… ), so they don't work to do what MuseScore wants them to do. You can indeed set a different keyboard shortcut for those things in Preferences > Shortcuts by double-clicking on a given command and entering what you'd like instead (which is ultimately what I've had to do for that thing with the supposed Ins key: http://musescore.org/en/node/36106#comment-188706 ), but it would be better if out of the box those actions were assigned to shortcuts that worked.