qmk_firmware/keyboards/qwertyydox/qwertyydox.h

#ifndef QWERTYYDOX_H
#define QWERTYYDOX_H

#ifdef KEYBOARD_qwertyydox_rev1
    #include "rev1.h"
#endif

#include "quantum.h"

// Used to create a keymap using only KC_ prefixed keys
#define LAYOUT_kc( \
    L00, L01, L02, L03, L04, L05, L06,       R00, R01, R02, R03, R04, R05, R06, \
    L10, L11, L12, L13, L14, L15, L16,       R10, R11, R12, R13, R14, R15, R16, \
    L20, L21, L22, L23, L24, L25, L26,       R20, R21, R22, R23, R24, R25, R26, \
    L30, L31, L32, L33,      L34, L35,       R30, R31,      R32, R33, R34, R35  \
    ) \
    LAYOUT( \
        KC_##L00, KC_##L01, KC_##L02, KC_##L03, KC_##L04, KC_##L05, KC_##L06,       KC_##R00, KC_##R01, KC_##R02, KC_##R03, KC_##R04, KC_##R05, KC_##R06, \
        KC_##L10, KC_##L11, KC_##L12, KC_##L13, KC_##L14, KC_##L15, KC_##L16,       KC_##R10, KC_##R11, KC_##R12, KC_##R13, KC_##R14, KC_##R15, KC_##R16, \
        KC_##L20, KC_##L21, KC_##L22, KC_##L23, KC_##L24, KC_##L25, KC_##L26,       KC_##R20, KC_##R21, KC_##R22, KC_##R23, KC_##R24, KC_##R25, KC_##R26, \
        KC_##L30, KC_##L31, KC_##L32, KC_##L33,           KC_##L34, KC_##L35,       KC_##R30, KC_##R31,           KC_##R32, KC_##R33, KC_##R34, KC_##R35  \
    )

#endif