The following shows how to set a button on Keystation Pro 88 to transmit a MIDI note on message when pressed, and transmit a note off when released.

1. Press a button to select for editing.
2. Press the CONTROL ASSIGN button and enter “147.” This is the MIDI CC number that corresponds to Note On/Off mode.
3. Press the DATA MSB button twice and enter the value of the desired Note On velocity (e.g. "100").  When you press the button, a Note On message will be sent out with a velocity of 100 (or whatever value you specify).
4. Press the DATA LSB button twice, and enter a value of “000.”  When you release the button, a Note Off message will be sent out.
5. Press the PROGRAM button twice and enter the MIDI note number you would like to send (e.g. “064”).  This will send out MIDI note 64, or E4, each time you press the button. The MIDI note numbers are listed in Appendix D of the Keystation Pro 88 Advanced user Guide.
    

This mode has many uses; use it to trigger samples, control lighting equipment, play keyboard notes and much more.

Note: When you press the button in note mode, the LCD display will briefly show the note velocity.