Arturia KeyStep - Controller / Sequencer - Manual (Page 67)

8.10. Working with Device Settings
8.10.1. Common features
Some parameters have pull-down menus with additional options. For example, the
Aftertouch curve has three settings:
The options of each field are different for each parameter.
8.10.1.1. MIDI Channel
Another option is available for setting the MIDI channel for a parameter.
The “User” setting allows you to change the MIDI channel of this parameter when you
change the MIDI channel of the keyboard.
So for each assignable parameter you can choose whether they will be locked to a
particular MIDI channel or will ‘float’ with the keyboard MIDI channel.
Arturia - User Manual KeyStep - MIDI Control Center 62