0–1b: fx sw, 0–1c: auto arp. (auto arpeggiator), 0–1: utility – KORG MICROX X50 User Manual
Page 83: Velocity curve [1…8, Ifx off [off, on, Mfx1 off [off, on, Mfx2 off [off, on, Program (auto arp. program) [off, on, Combi (auto arp. combi) [off, on, Write global setting