qmk_firmware/keyboards/reversestudio/decadepad/decadepad.h

#pragma once

#include "quantum.h"
#define LAYOUT_numpad_6x4( \
   k01, k02, k03, k04, \
   k11, k12, k13, k14, \
   k21, k22, k23,      \
   k31, k32, k33, k34, \
   k41, k42, k43,      \
   k51,      k53, k54  \
) \
{ \
    { k01, k02,   k03, k04     }, \
    { k11, k12,   k13, k14     }, \
    { k21, k22,   k23, KC_NO   }, \
    { k31, k32,   k33, k34     }, \
    { k41, k42,   k43, KC_NO   }, \
    { k51, KC_NO, k53, k54     }, \
}