qmk_firmware/keyboards/clueboard/66/keymaps/mouse_keys/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 _BL 0
#define _FL 1
#define _CL 2
#define _ML 3

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  /* Keymap _BL: Base Layer (Default Layer)
   */
[_BL] = LAYOUT(
  KC_GESC, 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_PGUP,
  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,                   KC_PGDN,
  KC_CAPS, KC_A,    KC_S,   KC_D,   KC_F,   KC_G,   KC_H,   KC_J,   KC_K,   KC_L,    KC_SCLN,  KC_QUOT,  KC_NUHS,  KC_ENT,
  KC_LSFT, KC_NUBS, KC_Z,   KC_X,   KC_C,   KC_V,   KC_B,   KC_N,   KC_M,   KC_COMM, KC_DOT,   KC_SLSH,  KC_RO,    KC_RSFT,          KC_UP,
  KC_LCTL, KC_LGUI, KC_LALT, KC_MHEN,          KC_SPC,KC_SPC,                        KC_HENK,  KC_RALT,  KC_RCTL,  MO(_FL), KC_LEFT, KC_DOWN, KC_RGHT),

  /* Keymap _FL: Function Layer
   */
[_FL] = LAYOUT(
  KC_GRV,  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,           BL_STEP,
  _______, _______, _______,_______,_______,_______,_______,_______,KC_PSCR,KC_SLCK, KC_PAUS,  _______,  _______,  _______,                   _______,
  _______, _______, MO(_CL),_______,_______,_______,_______,_______,_______,_______, _______,  _______,  _______,  _______,
  _______, _______, _______,_______,_______,_______,_______,_______,_______,_______, _______,  _______,  _______,  _______,          KC_PGUP,
  _______, _______, _______, _______,        _______,_______,                        _______,  _______,  _______,  MO(_FL), KC_HOME, KC_PGDN, KC_END),

  /* Keymap _CL: Control layer
   */
[_CL] = LAYOUT(
  _______, _______, _______,_______,_______,_______,_______,_______,_______,_______, _______,  _______,  _______,  _______, RGB_TOG,             RGB_VAI,
  _______, _______, _______,_______,QK_BOOT,  _______,_______,_______,_______,_______, _______,  _______,  _______,  _______,                   RGB_VAD,
  _______, _______, MO(_CL),_______,_______,_______,_______,_______,_______,_______, _______,  _______,  _______,  _______,
  MO(_FL), _______, _______,_______,_______,_______,_______,_______,_______,_______, _______,  _______,  _______,  MO(_FL),          RGB_SAI,
  _______, _______, _______,_______,        RGB_MOD,   RGB_MOD,                            _______,  _______,  _______,  _______, RGB_HUD,    RGB_SAD,    RGB_HUI),

    /* Keymap _ML: Mouse layer
     */
  [_ML] = LAYOUT(
    _______, _______, _______,_______,_______,_______,_______,_______,_______,_______, _______,  _______,  _______,  _______, _______,         _______,
    _______, _______, _______,_______,_______,_______,_______,_______,_______,_______, _______,  _______,  _______,  _______,                  _______,
    _______, _______, KC_BTN3,KC_BTN2,KC_BTN1,_______,_______,_______,_______,_______, _______,  _______,  _______,  _______,
    _______, _______, _______,_______,_______,_______,_______,_______,_______,_______, _______,  _______,  _______,  _______,          KC_MS_U,
    _______, _______, _______,_______,        LT(_ML, KC_SPC),LT(_ML, KC_SPC),         _______,  KC_BTN1,  KC_BTN2,  KC_BTN3, KC_MS_L, KC_MS_D,KC_MS_R),
};