How to change pop up speed of "Press and Hold" When pressing and holding a keyboard button, i.e. an a, a character pops up. 



I recall that I was somehow able to change how long I need to hold a key until the Picker pops up on Yosemite. 
I cannot find a place to change the popup speed on Mavericks though. 

defaults read -g | grep -i press does not return anything.
Apparently, this works for both Mavericks &amp; Yosemite...

You can do it right from the prefs

System Preferences > Keyboard > Keyboard

Set Delay until repeat

It works for the accent pop-up just the same as it does for 'regular' key repeat