qmk_firmware/keyboards/latin17rgb/latin17rgb.h

 /* Copyright 2021 18438880
  * 
  * This program is free software: you can redistribute it and/or modify 
  * it under the terms of the GNU General Public License as published by 
  * the Free Software Foundation, either version 2 of the License, or 
  * (at your option) any later version. 
  * 
  * This program is distributed in the hope that it will be useful, 
  * but WITHOUT ANY WARRANTY; without even the implied warranty of 
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
  * GNU General Public License for more details. 
  * 
  * You should have received a copy of the GNU General Public License 
  * along with this program.  If not, see <http://www.gnu.org/licenses/>. 
  */ 
#pragma once

#include "quantum.h"

#define XXX KC_NO

#define LAYOUT_numpad_5x4( \
    K00, K01, K02, K03, \
    K10, K11, K12,      \
    K20, K21, K22, K13, \
    K30, K31, K32,      \
    K40,      K41, K33  \
) { \
    { K00, K01, K02, K03 }, \
    { K10, K11, K12, K13 }, \
    { K20, K21, K22      }, \
    { K30, K31, K32, K33 }, \
    { K40, K41           }  \
}

#define LAYOUT_pad LAYOUT_numpad_5x4