M-Audio OXYGEN PRO 25 Guide D'utilisation Rapide page 13

Scale Mode
With Scale Mode, you can set the keybed so that keys outside the notes of a selected musical scale
are disabled. This allows you to play within a chosen scale without the risk of playing any "wrong"
notes. You can choose from 16 different options when assigning a scale to the keyboard.
To activate or deactivate Scale Mode, double tap the Chord/Scale Button. While Scale Mode is
activated, the Chord/Scale Button will be flashing.
To determine what musical scale the keybed is set to, enter the Chord/Scale Edit menu on the
Display by holding Shift and pressing the Chord/Scale Button. Then use the Select/Scroll
Encoder to adjust settings (as described in Display Overview). When you're done editing settings,
press the Back Button to exit the Scale Edit menu.
Global Settings Menu
Use the Global Settings Menu on the Display to customize some of the keyboard's default controls.
These settings apply to the keyboard in both DAW and Preset Mode, and any changes made from
the Global Settings Menu will be saved after the keyboard is turned off.
To enter the Global Settings Menu, hold Shift and press the Mode Button. Use the Select/Scroll
Encoder to adjust settings (as described in Display Overview).
To exit the Global Settings Menu, press the Back Button.
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