The MIDI assign feature in Serato DJ provides the ability to control functions of Serato DJ Pro using secondary MIDI controllers such as keyboards, triggers, sliders, and knobs. Integrating MIDI controllers into your Serato DJ setup can improve live performance usability, such as hitting pads on a MIDI controller to trigger Loops and Cue Points. You can create, save and edit MIDI presets and preferences in the SETUP screen, under the MIDI tab.