Some Serato DJ controls on the GUI have additional functionality assigned to control + click. You can assign control + click functionality to a MIDI control, alongside the normal functionality. For example, control + click on the internal mode pitch slider returns pitch to zero. To assign this to MIDI control, enter MIDI assign mode, control-click on the slider, and then assign one of the pads to it. When you press the pad, the pitch goes to 0. Alt + click is also available as a tertiary function, as well as control + click for secondary mappable functions.