USER SCALE ALL
When in Global Settings window the User Scale All is accessed through the button .
Within User Scale All window the individual values associated with each key within each octave can be adjusted by each slider key . The octave to be adjusted is selected by clicking on the keyboard at the bottom of window . The octave that is being adjusted is indicated by the number in the upper left corner; in this example: Octave 5 . See User Scale Octave tutorial for more.
When the window is closed the values are saved to the new Global Settings.