I just got Yosemite and now my Press and hold accent capability seems to have disappeared with my old software.
I tried using
/System/Library/Input Methods/PressAndHold.app in Terminal to find Press And Hold but it comes up saying
-bash: System/Library/Input: No such file or directory
and I am not even able to use
defaults write -g ApplePressAndHoldEnabled -bool true
to enable it. Please help!