qmk_firmware/keyboards/tenki/keymaps/default/keymap.c

#include QMK_KEYBOARD_H

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [0] = LAYOUT_ortho_5x4(
    KC_NUM, 	KC_PSLS,    KC_PAST,    	KC_PMNS,
    KC_P7,  	KC_P8,    	KC_P9,    		KC_PPLS,
    KC_P4,  	KC_P5,    	KC_P6,    		KC_BSPC,
    KC_P1,  	KC_P2,    	KC_P3,    		KC_PEQL,
    KC_P0, 	KC_PSCR , 	LT(1,KC_PDOT),  KC_PENT
  ),

  [1] = LAYOUT_ortho_5x4(
    KC_TRNS, 	UG_HUEU,    UG_HUED,    	UG_VALD,
    KC_TRNS, 	KC_VOLU,    UG_TOGG,    	UG_VALU,
    KC_MPRV, 	KC_MUTE,    KC_MNXT,    	KC_TRNS,
    KC_TRNS,  KC_VOLD,    KC_TRNS,    	KC_TRNS,
    QK_BOOT,  KC_TRNS,    KC_TRNS,        UG_NEXT
  )
};