qmk_firmware/keyboards/plain60/keymaps/yanfali/keymap.c

#include QMK_KEYBOARD_H

// Each layer gets a name for readability, which is then used in the keymap matrix below.
// The underscores don't mean anything - you can have a layer called STUFF or any other name.
// Layer names don't all need to be of the same length, obviously, and you can also skip them
// entirely and just use numbers.
#define _MA 0
#define _FN 1

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {

[_FN] = LAYOUT(
  _______,  KC_F1,    KC_F2,     KC_F3,     KC_F4,     KC_F5,     KC_F6,     KC_F7,     KC_F8,     KC_F9,    KC_F10,    KC_F11,  KC_F12,  _______, KC_DEL, \
  _______,  _______,  KC_UP,     _______,   _______,   _______,   _______,   _______,   _______,   _______,   _______,  _______, _______, RESET,         \
  KC_CAPS,  KC_LEFT,  KC_DOWN,   KC_RIGHT,  _______,   _______,   _______,   _______,   _______,   _______,   _______,  _______, _______, _______,          \
  _______,  _______,  _______,   _______,   _______,   _______,   _______,   _______,   _______,   _______,   _______,  _______, _______, _______,       \
  _______,  _______,  _______,                         _______,                         _______,   _______,   _______,  _______),

[_MA] = LAYOUT(
  KC_ESC,           KC_1,    KC_2,   KC_3,   KC_4,   KC_5,   KC_6,   KC_7,   KC_8,   KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_GRV, KC_BSPC, \
  KC_TAB,           KC_Q,    KC_W,   KC_E,   KC_R,   KC_T,   KC_Y,   KC_U,   KC_I,   KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,         \
  LCTL_T(KC_ESC),   KC_A,    KC_S,   KC_D,   KC_F,   KC_G,   KC_H,   KC_J,   KC_K,   KC_L,    KC_SCLN, KC_QUOT, KC_BSLS, KC_ENT,          \
  KC_LSFT,          KC_NO,   KC_Z,   KC_X,   KC_C,   KC_V,   KC_B,   KC_N,   KC_M,   KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, MO(_FN)  ,       \
  KC_LCTL,          KC_LALT, KC_LGUI,                        KC_SPC,                          KC_NO,   KC_RGUI, KC_RALT,  KC_RCTRL)
};