Arturia KeyStep 37 MIDI Keyboard Controller and Sequencer - Manual (Page 94)

9.7. Editing basics
9.7.1. Data entry
There are two main ways to enter new parameter values in the MIDI Control Center: click
something and move it, or type a number into a field.
To edit Swing %, for example, click and drag the knob graphic or double-click in the value
field and enter a new value:
Editing a knob value
To edit a parameter such as Gate Length, click its pull-down menu and make a selection:
89 Arturia - User Manual KeyStep 37 - The MIDI Control Center