Migrate ACTION_LAYER_MOMENTARYs to MO() (#5176)

* Migrate ACTION_LAYER_MOMENTARYs to MO()

* Add changelog entry

* Update docs/ChangeLog/20190830/PR5176.md

Co-Authored-By: skullydazed <skullydazed@users.noreply.github.com>

13 files changed, 78 insertions, 75 deletions

diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_brett.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_brett.c
index 3ebd82af4f..cdebcd1433 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_brett.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_brett.c
@@ -1,26 +1,26 @@
 #include "keymap.h"
 
+#define KC_MO1 MO(1)
+#define KC_MO2 MO(2)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [0] = KEYMAP( 
   ESC,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
   LCTL, A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, ENT,
   LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SLSH, RSFT,
-  TAB, LGUI,  RSFT, LALT, FN2,     SPC,     FN1,  LEFT, DOWN, UP,   RGHT),
+  TAB, LGUI,  RSFT, LALT, MO2,     SPC,     MO1,  LEFT, DOWN, UP,   RGHT),
 [1] = KEYMAP( /* RAISE */
   GRV,  1,    2,    3,    4,    5,    6,    7,    8,    9,    0,    DEL,
   TRNS, F1,   F2,   F3,   F4,   F5,   F6,   4,    5,    6,   QUOT, TRNS,
   TRNS, F7,   F8,   F9,   F10,  F11,  F12,  1,    2,    3,   TRNS, PGUP,
-  MPRV, MNXT, TRNS, MUTE, TRNS,    TRNS,    FN1,  0,  0,  TRNS, PGDN),
+  MPRV, MNXT, TRNS, MUTE, TRNS,    TRNS,    MO1,  0,  0,  TRNS, PGDN),
 [2] = KEYMAP( /* LOWER */
   TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, MINS,
   TRNS, TRNS, TRNS, PAUSE, TRNS, TRNS, TRNS, TRNS, LBRC, RBRC, BSLS, EQL,
   TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
-  MPLY, MSTP, VOLU, VOLD, FN2,     TRNS,    TRNS, TRNS, TRNS, TRNS, TRNS),
+  MPLY, MSTP, VOLU, VOLD, MO2,     TRNS,    TRNS, TRNS, TRNS, TRNS, TRNS),
 };
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(1),  // to Fn overlay
-    [2] = ACTION_LAYER_MOMENTARY(2),  // to Fn overlay 
-
     [10] = ACTION_MODS_KEY(MOD_LSFT, KC_1),
     [11] = ACTION_MODS_KEY(MOD_LSFT, KC_2),
     [12] = ACTION_MODS_KEY(MOD_LSFT, KC_3),
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_dotcom.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_dotcom.c
index d4ec987abd..5a85a6086c 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_dotcom.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_dotcom.c
@@ -1,20 +1,20 @@
 #include "keymap.h"
 
+#define KC_MO1 MO(1)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [0] = KEYMAP( 
   ESC,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
-  FN1,  A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, ENT,
+  MO1,  A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, ENT,
   LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SLSH, LBRC,
   LCTL, BSLS, QUOT, LALT, FN22,    SPC,     LEFT, UP, DOWN, RGHT,  RBRC),
 [1] = KEYMAP( 
   GRV,  1,    2,    3,    4,    5,    6,    7,    8,    9,    0,    DEL,
   TRNS, FN10, FN11, FN12, FN13, FN14, FN15, FN16, FN17,  TRNS, TRNS, TRNS,
   TRNS, FN18,  FN19,  FN22,  EQL,  MINS,  FN20,  TRNS,  TRNS,  TRNS,  TRNS, TRNS,
-  TRNS, TRNS, TRNS, TRNS, TRNS,    TRNS,   FN1,  TRNS, VOLD, VOLU, TRNS),
+  TRNS, TRNS, TRNS, TRNS, TRNS,    TRNS,   MO1,  TRNS, VOLD, VOLU, TRNS),
 };
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(1),  // to Fn overlay
-
     [10] = ACTION_MODS_KEY(MOD_LSFT, KC_1),
     [11] = ACTION_MODS_KEY(MOD_LSFT, KC_2),
     [12] = ACTION_MODS_KEY(MOD_LSFT, KC_3),
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_jack.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_jack.c
index 4237949d54..14db7feaa0 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_jack.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_jack.c
@@ -1,31 +1,31 @@
 #include "keymap.h"
 
+#define KC_MO2 MO(2)
+#define KC_MO3 MO(3)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [0] = KEYMAP( /* Jack */
   TAB,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
   ESC,  A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, QUOT,
   LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SLSH, ENT,
-  RSFT, LCTL, LALT, LGUI, FN2,    SPC,     FN1, LEFT, DOWN, UP,  RGHT),
+  RSFT, LCTL, LALT, LGUI, MO3,    SPC,     MO2, LEFT, DOWN, UP,  RGHT),
 [1] = KEYMAP( /* Jack colemak */
   TAB,  Q,    W,    F,    P,    G,    J,    L,    U,    Y,    SCLN, BSPC,
   ESC,  A,    R,    S,    T,    D,    H,    N,    E,    I,    O,     QUOT,
   LSFT, Z,    X,    C,    V,    B,    K,    M,    COMM, DOT,  SLSH, ENT,
-  FN3, LCTL, LALT, LGUI, FN2,    SPC,     FN1, LEFT, DOWN, UP,  RGHT),
+  FN3, LCTL, LALT, LGUI, MO3,    SPC,     MO2, LEFT, DOWN, UP,  RGHT),
 [2] = KEYMAP( /* Jack RAISE */
   GRV,  1,    2,    3,    4,    5,    6,    7,    8,    9,    0,    BSPC,
   TRNS, FN3, FN4, PAUSE, TRNS, TRNS, TRNS, MINS, EQL,  LBRC, RBRC, BSLS,
   TRNS, F11,  F12,  F13,  F14,  F15,  F16,  F17,  F18,  F19,  F20, TRNS,
-  TRNS, TRNS, TRNS, TRNS, TRNS,    TRNS,   FN1,  MNXT, VOLD, VOLU, MPLY),
+  TRNS, TRNS, TRNS, TRNS, TRNS,    TRNS,   MO2,  MNXT, VOLD, VOLU, MPLY),
 [3] = KEYMAP( /* Jack LOWER */
   FN22, FN10, FN11, FN12, FN13, FN14, FN15, FN16, FN17, FN18, FN19, BSPC,
   TRNS, FN3, FN4, PAUSE, TRNS, TRNS, TRNS, FN20, FN21, FN23, FN24, FN28,
   TRNS, F1,   F2,   F3,   F4,   F5,   F6,   F7,   F8,   F9,   F10,  TRNS,
-  TRNS, TRNS, TRNS, TRNS, FN2,    TRNS,    TRNS, MNXT, VOLD, VOLU, MPLY),
+  TRNS, TRNS, TRNS, TRNS, MO3,    TRNS,    TRNS, MNXT, VOLD, VOLU, MPLY),
 };
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(2),  // to Fn overlay
-    [2] = ACTION_LAYER_MOMENTARY(3),  // to Fn overlay
-
     [3] = ACTION_DEFAULT_LAYER_SET(0),  
     [4] = ACTION_DEFAULT_LAYER_SET(1),
 
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_joe.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_joe.c
index b8251c8573..efd188a8ee 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_joe.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_joe.c
@@ -1,26 +1,30 @@
 #include "keymap.h"
 
+#define KC_MO2 MO(2)
+#define KC_MO3 MO(3)
+#define KC_MO4 MO(4)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [0] = KEYMAP( /* Joe qwerty */
   ESC,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    MINS,
   BSPC, A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, ENTER,
   FN7,  Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SLSH, QUOT,
-  LCTL, LGUI, LALT, LSFT, FN1,    SPC,      FN0,  LEFT, UP,   DOWN, RGHT),
+  LCTL, LGUI, LALT, LSFT, MO3,    SPC,      MO2,  LEFT, UP,   DOWN, RGHT),
 [1] = KEYMAP( /* Joe colemak */
   ESC,  Q,    W,    F,    P,    G,    J,    L,    U,    Y,    SCLN, MINS,
   BSPC, A,    R,    S,    T,    D,    H,    N,    E,    I,    O,    ENTER,
   FN7,  Z,    X,    C,    V,    B,    K,    M,    COMM, DOT,  SLSH, QUOT,
-  LCTL, LGUI, LALT, LSFT, FN1,    SPC,      FN0,  LEFT, UP,   DOWN, RGHT),
+  LCTL, LGUI, LALT, LSFT, MO3,    SPC,      MO2,  LEFT, UP,   DOWN, RGHT),
 [2] = KEYMAP( /* Joe UPPER */
   F1,   F2,   F3,   F4,   F5,   F6,   F7,   F8,   F9,   F10,  F11,  F12,
   DEL,  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
   TRNS, TRNS, TRNS, TRNS, TRNS, MENU, CAPS, INS,  PSCR, TRNS, FN5,  FN6,
-  TRNS, TRNS, TRNS, TRNS, FN2,     TRNS,    FN0,  FN26, FN27, FN28, FN29),
+  TRNS, TRNS, TRNS, TRNS, MO4,     TRNS,    MO2,  FN26, FN27, FN28, FN29),
 [3] = KEYMAP( /* Joe LOWER */
   GRV,  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, FN8,  FN9,  FN30,
   BSPC, 1,    2,    3,    4,    5,    6,    7,    8,    9,    0,    TRNS,
   BSLS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, LBRC, RBRC, TRNS, EQL,
-  TRNS, TRNS, TRNS, TRNS, FN1,     TRNS,    FN2,  HOME, PGUP, PGDN, END),
+  TRNS, TRNS, TRNS, TRNS, MO3,     TRNS,    MO4,  HOME, PGUP, PGDN, END),
 [4] = KEYMAP( /* Joe LOWER + UPPER */
   FN3,  FN4,  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, SLEP,
   TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
@@ -35,10 +39,6 @@ enum macro_id {
 };
 
 const uint16_t PROGMEM fn_actions[] = {
-    [0] = ACTION_LAYER_MOMENTARY(2),  // to Fn overlay
-    [1] = ACTION_LAYER_MOMENTARY(3),  // to Fn overlay
-    [2] = ACTION_LAYER_MOMENTARY(4),  // to Fn overlay
-
     [3] = ACTION_DEFAULT_LAYER_SET(0), 
     [4] = ACTION_DEFAULT_LAYER_SET(1),
 
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_matthew.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_matthew.c
index 196b2d7773..fe0dfa619c 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_matthew.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_matthew.c
@@ -22,12 +22,15 @@
 
 #include "keymap.h"
 
+#define KC_MO1 MO(1)
+#define KC_MO2 MO(2)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   /* 0: dvorak */
   [0] = KEYMAP_GRID( ESC, SCLN, COMM,  DOT,    P,    Y,    F,    G,    C,    R,    L, BSPC,   \
                      GRV,    A,    O,    E,    U,    I,    D,    H,    T,    N,    S, MINS,   \
                      TAB, QUOT,    Q,    J,    K,    X,    B,    M,    W,    V,    Z,  ENT,   \
-                    LCTL, LGUI, LALT, RALT,  FN1, LSFT,  SPC,  FN2, LEFT, DOWN,   UP, RGHT),
+                    LCTL, LGUI, LALT, RALT,  MO1, LSFT,  SPC,  MO2, LEFT, DOWN,   UP, RGHT),
 
   /* 1: lower (FN1) */
   [1] = KEYMAP_GRID( F1,   F2,   F3,   F4,   F5,   F6,   F7,   F8,   F9,  F10,  F11,  F12,   \
@@ -44,9 +47,6 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(1),               // lower Fn layer
-    [2] = ACTION_LAYER_MOMENTARY(2),               // raise Fn layer
-
     // lower row1
     [17] = ACTION_MODS_KEY(MOD_LSFT, KC_5),        // %
     [18] = ACTION_MODS_KEY(MOD_LSFT, KC_SLASH),    // ?
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_nathan.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_nathan.c
index f0be4b0306..7cc5e7f0ac 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_nathan.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_nathan.c
@@ -3,6 +3,9 @@
 
 #include "keymap.h"
 
+#define KC_MO1 MO(1)
+#define KC_MO2 MO(2)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* 0: main layer
     * ,-----------------------------------------------------------------------.
@@ -19,7 +22,7 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
        TAB,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
        LCTL, A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, ENT,
        RSFT, Z,    X,    C,    V,    B,    N,    M,    LBRC, FN10, FN11, FN12,
-       LGUI, BSLS, SLSH, LALT, FN0,  SPC,  SPC,  FN1,  LEFT, DOWN, UP,   RGHT),
+       LGUI, BSLS, SLSH, LALT, MO1,  SPC,  SPC,  MO2,  LEFT, DOWN, UP,   RGHT),
 
    /* 1: fn left/lower layer
     * The top row are Visual Studio combos:
@@ -73,8 +76,6 @@ enum macro_id {
 };
 
 const uint16_t PROGMEM fn_actions[] = {
-  [0] = ACTION_LAYER_MOMENTARY(1), // left/lower layer
-  [1] = ACTION_LAYER_MOMENTARY(2), // right/raise layer
   // Program macros
   [2] = ACTION_MACRO(M_P0),
   [3] = ACTION_MACRO(M_P1),
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_paul.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_paul.c
index 51d45be75b..829c047be6 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_paul.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_paul.c
@@ -1,32 +1,32 @@
 #include "keymap.h"
 
+#define KC_MO1 MO(1)
+#define KC_MO2 MO(2)
+#define KC_MO3 MO(3)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [0] = KEYMAP( /* Paul */
   TAB,   Q,     W,     E,     R,     T,     Y,     U,     I,     O,     P,     BSPC,
-  FN1,   A,     S,     D,     F,     G,     H,     J,     K,     L,     SCLN,  QUOT,
+  MO1,   A,     S,     D,     F,     G,     H,     J,     K,     L,     SCLN,  QUOT,
   LSFT,  Z,     X,     C,     V,     B,     N,     M,     COMM,  DOT,   SLSH,  ENT,
-  ESC,   LCTL,  LALT,  LGUI,  FN2,       SPC,      FN3,   LEFT,  DOWN,  UP,    RGHT),
+  ESC,   LCTL,  LALT,  LGUI,  MO2,       SPC,      MO3,   LEFT,  DOWN,  UP,    RGHT),
 [1] = KEYMAP( /* Paul FN */
   TRNS,  TRNS,  TRNS,  FN8,   FN9,   TRNS,  TRNS,  TRNS,  TRNS,  MUTE,  VOLD,  VOLU,
-  FN1,   TRNS,  TRNS,  HOME,  END,   TRNS,  TRNS,  TRNS,  TRNS,  MPRV,  MPLY,  MNXT,
+  MO1,   TRNS,  TRNS,  HOME,  END,   TRNS,  TRNS,  TRNS,  TRNS,  MPRV,  MPLY,  MNXT,
   TRNS,  TRNS,  TRNS,  TRNS,  TRNS,  TRNS,  TRNS,  TRNS,  TRNS,  TRNS,  UP,    TRNS,
   TRNS,  TRNS,  TRNS,  TRNS,  TRNS,      TRNS,     TRNS,  TRNS,  LEFT,  DOWN,  RGHT),
 [2] = KEYMAP( /* Paul LOWER */
   FN22,  FN10,  FN11,  FN12,  FN13,  FN14,  FN15,  FN16,  FN17,  FN18,  FN19,  BSPC,
   TRNS,  TRNS,  TRNS,  TRNS, TRNS,   TRNS,  TRNS,  FN20,  FN21,  FN23,  FN24,  FN28,
   TRNS,  F1,    F2,    F3,    F4,    F5,    F6,    F7,    F8,    F9,    F10,   TRNS,
-  TRNS,  TRNS,  TRNS,  TRNS,  FN2,       TRNS,     TRNS,  TRNS,  TRNS,  TRNS,  TRNS),
+  TRNS,  TRNS,  TRNS,  TRNS,  MO2,       TRNS,     TRNS,  TRNS,  TRNS,  TRNS,  TRNS),
 [3] = KEYMAP( /* Paul RAISE */
   GRV,   1,     2,     3,     4,     5,     6,     7,     8,     9,     0,     BSPC,
   TRNS,  TRNS,  TRNS,  TRNS, TRNS,  TRNS,   TRNS,  MINS,  EQL,   LBRC,  RBRC,  BSLS,
   TRNS,  F11,   F12,   F13,   F14,   F15,   F16,   F17,   F18,   F19,   F20,   TRNS,
-  TRNS,  TRNS,  TRNS,  TRNS,  TRNS,      TRNS,     FN3,   TRNS,  TRNS,  TRNS,  TRNS),
+  TRNS,  TRNS,  TRNS,  TRNS,  TRNS,      TRNS,     MO3,   TRNS,  TRNS,  TRNS,  TRNS),
 };
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(1),  // to Fn1 overlay (FN)
-    [2] = ACTION_LAYER_MOMENTARY(2),  // to Fn2 overlay (LOWER)
-    [3] = ACTION_LAYER_MOMENTARY(3),  // to Fn3 overlay (RAISE)
-
     [8]  = ACTION_MODS_KEY(MOD_LSFT, KC_HOME),
     [9]  = ACTION_MODS_KEY(MOD_LSFT, KC_END),
     [10] = ACTION_MODS_KEY(MOD_LSFT, KC_1),
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_reed.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_reed.c
index f721716fde..9e6e953e31 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_reed.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_reed.c
@@ -1,5 +1,8 @@
 #include "keymap.h"
 
+#define KC_MO2 MO(2)
+#define KC_MO3 MO(3)
+
 /*
  * BUILD:
  * Simply run the command below in the keyboards/planck directory
@@ -23,30 +26,27 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   ESC,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
   TAB,  A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, QUOT,
   LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SLSH, FN5,
-  LCTL, CAPS, LALT, LGUI, FN2, FN7,  SPC,  FN1,   LEFT, DOWN, UP,  RGHT),
+  LCTL, CAPS, LALT, LGUI, MO3, FN7,  SPC,  MO2,   LEFT, DOWN, UP,  RGHT),
 
 [1] = KEYMAP_GRID( /* Reed EXTREME GAMING */
   ESC,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
   TAB,  A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, QUOT,
   LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SLSH, FN5,
-  LCTL, 1,    2,    3,    4,   SPC,  FN2,  FN1,   LEFT, DOWN, UP,  RGHT),
+  LCTL, 1,    2,    3,    4,   SPC,  MO3,  MO2,   LEFT, DOWN, UP,  RGHT),
 
 [2] = KEYMAP_GRID( /* Reed RAISE */
   GRV,  1,    2,    3,    4,    5,    6,    7,    8,    9,    0,    BSPC,
   TRNS, FN3, FN4, PAUSE, TRNS, TRNS, TRNS, MINS, EQL,  LBRC, RBRC,  BSLS,
   TRNS, F1,   F2,    F3,   F4,   F5,   F6,   F7,  F8,    F9,  F10,  TRNS,
-  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, FN1, MNXT, VOLD, VOLU, MPLY),
+  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, MO2, MNXT, VOLD, VOLU, MPLY),
 
 [3] = KEYMAP_GRID( /* Reed LOWER */
   TRNS,  FN10, FN11, FN12, FN13, FN14, FN15, FN16, FN17, FN18, FN19, DEL,
   TRNS,  TRNS, INS, HOME, PGUP, TRNS, TRNS, FN20, FN21, FN23, FN24, FN28,
   TRNS,  TRNS, DEL,  END, PGDN,  F11,  F12,  F13,  TRNS, VOLD, VOLU, TRNS,
-  TRNS,  TRNS, TRNS, TRNS, FN2,  TRNS, TRNS, TRNS, MPRV, MUTE, MPLY, MNXT),
+  TRNS,  TRNS, TRNS, TRNS, MO3,  TRNS, TRNS, TRNS, MPRV, MUTE, MPLY, MNXT),
 };
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(2),  // to Fn overlay - RAISE
-    [2] = ACTION_LAYER_MOMENTARY(3),  // to Fn overlay - LOWER
-
     [3] = ACTION_DEFAULT_LAYER_SET(0),
     [4] = ACTION_DEFAULT_LAYER_SET(1),
 	// Actions for the tap/hold modifiers listed above
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_sean.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_sean.c
index 27a669e640..10a112986e 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_sean.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_sean.c
@@ -8,6 +8,10 @@ enum planck_layers {
   _ADJUST
 };
 
+#define KC_LOWR MO(_LOWER)
+#define KC_RAIS MO(_RAISE)
+#define KC_ADJS MO(_ADJUST)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 /* Dvorak
@@ -25,7 +29,7 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
       QUOT, COMM,  DOT,    P,    Y, SLSH,  EQL,    F,    G,    C,    R,    L,
          A,    O,    E,    U,    I,  ESC, BSPC,    D,    H,    T,    N,    S,
       SCLN,    Q,    J,    K,    X,  TAB,  ENT,    B,    M,    W,    V,    Z,
-      LSFT, LCTL, LALT, LGUI,  FN1,  SPC,        FN2, LEFT, DOWN,   UP, RGHT),
+      LSFT, LCTL, LALT, LGUI,  LOWR, SPC,        RAIS,LEFT, DOWN,   UP, RGHT),
 
 /* Lower
  * ,-----------------------------------------------------------------------------------.
@@ -42,7 +46,7 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         F1,   F2,   F3,   F4,   F5, FN26, FN27,   F6,   F7,   F8,   F9,  F10,
          1,    2,    3,    4,    5, LBRC, RBRC,    6,    7,    8,    9,    0,
        FN23, FN25,  GRV,MINS, FN24, INS,   DEL, FN19, FN20, FN22,  EQL, BSLS,
-      TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,        FN4, HOME, PGDN, PGUP,  END),
+      TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,        ADJS,HOME, PGDN, PGUP,  END),
 
 /* Raise
  * ,-----------------------------------------------------------------------------------.
@@ -59,7 +63,7 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
        F11,  F12,  F13,  F14,  F15,MINS,  FN24,  F16,  F17,  F18,  F19,  F20,
       FN11, FN12, FN13, FN14, FN15,  NO,    NO, FN16, FN17, FN18, FN19, FN20,
        PWR, EJCT,   NO,   NO,   NO,  NO,    NO,   NO,   NO,   NO,   NO,   NO,
-      CAPS, TRNS, TRNS, TRNS,  FN4, TRNS,        FN2,   NO,   NO,   NO,   NO),
+      CAPS, TRNS, TRNS, TRNS,  ADJS,TRNS,        RAIS,  NO,   NO,   NO,   NO),
 /* Adjust (Lower + Raise or SLower + SRaise)
  * ,-----------------------------------------------------------------------------------.
  * |      | Reset|      |      |      |      |      |      |      |      |      |      |
@@ -79,10 +83,7 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 };
 
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(_LOWER),  // to Fn overlay LOWER
-    [2] = ACTION_LAYER_MOMENTARY(_RAISE),  // to Fn overlay RAISE
     [3] = ACTION_DEFAULT_LAYER_SET(_DVRK), 
-    [4] = ACTION_LAYER_MOMENTARY(_ADJUST),  // RAISE + LOWER
     [11] = ACTION_MODS_KEY(MOD_LSFT, KC_1),     //!
     [12] = ACTION_MODS_KEY(MOD_LSFT, KC_2),     //@
     [13] = ACTION_MODS_KEY(MOD_LSFT, KC_3),     //#
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_shane.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_shane.c
index 2191758c8c..69ce9b8e09 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_shane.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_shane.c
@@ -3,6 +3,9 @@
 #include "action.h"
 #include "action_util.h"
 
+#define KC_MO6 MO(6)
+#define KC_MO8 MO(8)
+
 /*
   Shane's Planck Layout
   http://www.keyboard-layout-editor.com/#/layouts/015d9011102619d7695c86ffe57cf441
@@ -12,7 +15,7 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     TAB,  Q,  W,  E,  R,  T,  Y,  U,  I,  O,  P,  MINS,
     LCTL, A,  S,  D,  F,  G,  H,  J,  K,  L,  SCLN, BSPC,
     LSFT, Z,  X,  C,  V,  B,  N,  M,  COMM, DOT,  SLSH, FN5,
-    /*ALPHA*/FN3, /*HYPER*/ /*SUPER*/LGUI, /*META*/LALT, LCTL,  FN2,  FN6,  FN1,  LEFT, DOWN, UP, RGHT),
+    /*ALPHA*/FN3, /*HYPER*/ /*SUPER*/LGUI, /*META*/LALT, LCTL,  MO8,  FN6,  MO6,  LEFT, DOWN, UP, RGHT),
   [2] = KEYMAP_AND_SWAP( /* More modifiers */
     TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
     TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
@@ -72,8 +75,6 @@ void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
 
 
 const uint16_t PROGMEM fn_actions[] = {
-  [1] = ACTION_LAYER_MOMENTARY(6),  // to fist Fn overlay
-  [2] = ACTION_LAYER_MOMENTARY(8),  // to second Fn overlay
   [3] = ACTION_LAYER_TOGGLE(2), // toggle more modifiers
   [4] = ACTION_LAYER_TOGGLE(4), // toggle wasd
   [5] = ACTION_MODS_TAP_KEY(MOD_RSFT, KC_ENT),
@@ -95,4 +96,4 @@ const uint16_t PROGMEM fn_actions[] = {
   [24] = ACTION_MODS_KEY(MOD_LSFT, KC_LBRC),
   [25] = ACTION_MODS_KEY(MOD_LSFT, KC_RBRC),
   [26] = ACTION_MODS_KEY(MOD_LSFT, KC_BSLS),
-};
\ No newline at end of file
+};
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_simon.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_simon.c
index 8058c2e109..fa948077ce 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_simon.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_simon.c
@@ -1,11 +1,14 @@
 #include "keymap.h"
 
+#define KC_MO1 MO(1)
+#define KC_MO2 MO(2)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [0] = KEYMAP( /* Jack */
   ESC,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
   TAB,  A,    S,    D,    F,    G,    H,    J,    K,    L,    DOT,  ENT,
   LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SCLN, DEL,
-  LCTL, ENT,  LALT, CAPS, FN2,    SPC,      FN1,  LEFT, DOWN, UP,   RGHT),
+  LCTL, ENT,  LALT, CAPS, MO2,    SPC,      MO1,  LEFT, DOWN, UP,   RGHT),
 [1] = KEYMAP( /* Jack RAISE */
   TRNS, F1,   F2,   F3,   F4,   NO,   FN11, FN9,  FN12, NO,   FN14, TRNS,
   TRNS, F5,   F6,   F7,   F8,   FN16, SLSH, MINS, EQL,  LBRC, FN8,  TRNS,
@@ -18,9 +21,6 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   TRNS, TRNS, TRNS, TRNS, TRNS,    TRNS,    TRNS, TRNS, TRNS, TRNS, TRNS),
 };
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(1),  // to Fn overlay
-    [2] = ACTION_LAYER_MOMENTARY(2),  // to Fn overlay
-
     [8]  = ACTION_MODS_KEY(MOD_LSFT, KC_SLSH),
     [9]  = ACTION_MODS_KEY(MOD_LSFT, KC_QUOT),
     [10] = ACTION_MODS_KEY(MOD_LSFT, KC_1),
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_tim.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_tim.c
index 64d0b74039..5be56e7256 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_tim.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_tim.c
@@ -1,26 +1,26 @@
 #include "keymap.h"
 
+#define KC_MO2 MO(2)
+#define KC_MO3 MO(3)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [0] = KEYMAP(
   ESC,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
   TAB,  A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, ENT,
   LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SLSH, RSFT,
-  LCTL, LALT, DEL,  LGUI, FN2,    SPC,     FN1,   F2,   F5,   F9,   F12),
+  LCTL, LALT, DEL,  LGUI, MO3,    SPC,     MO2,   F2,   F5,   F9,   F12),
 [2] = KEYMAP( /* RAISE */
   TRNS,  1,    2,    3,    4,    5,    6,    7,    8,    9,    0,   BSPC,
   GRV,  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, MINS, EQL,  LBRC, RBRC, BSLS,
   TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, QUOT, FN29, TRNS, TRNS,
-  TRNS, TRNS, TRNS, TRNS, TRNS,    TRNS,    FN1,  TRNS, TRNS, TRNS, TRNS),
+  TRNS, TRNS, TRNS, TRNS, TRNS,    TRNS,    MO2,  TRNS, TRNS, TRNS, TRNS),
 [3] = KEYMAP( /* LOWER */
   TRNS, FN10, FN11, FN12, FN13, FN14, FN15, FN16, FN17, FN18, FN19, BSPC,
   FN22, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, FN20, FN21, FN23, FN24, FN28,
   TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, QUOT, FN29, TRNS, TRNS,
-  TRNS, TRNS, TRNS, TRNS, FN2,    TRNS,     TRNS, TRNS, TRNS, TRNS, TRNS),
+  TRNS, TRNS, TRNS, TRNS, MO3,    TRNS,     TRNS, TRNS, TRNS, TRNS, TRNS),
 };
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(2),  // to Fn overlay
-    [2] = ACTION_LAYER_MOMENTARY(3),  // to Fn overlay
-
     [3] = ACTION_DEFAULT_LAYER_SET(0),  
     [4] = ACTION_DEFAULT_LAYER_SET(1),
 
diff --git a/keyboards/planck/old_keymap_files/common_keymaps/keymap_wilba.c b/keyboards/planck/old_keymap_files/common_keymaps/keymap_wilba.c
index 22326ebe45..5bf06382d7 100644
--- a/keyboards/planck/old_keymap_files/common_keymaps/keymap_wilba.c
+++ b/keyboards/planck/old_keymap_files/common_keymaps/keymap_wilba.c
@@ -1,31 +1,31 @@
 #include "keymap.h"
 
+#define KC_MO2 MO(2)
+#define KC_MO3 MO(3)
+
 const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [0] = KEYMAP( /* Wilba */
   FN27, FN28, FN29, E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
   TAB,  A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, QUOT,
   LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SLSH, ENT,
-  LCTL, LGUI, LALT, RSFT, FN1,  SPC,        FN2,  LEFT, DOWN, UP,   RGHT),
+  LCTL, LGUI, LALT, RSFT, MO2,  SPC,        MO3,  LEFT, DOWN, UP,   RGHT),
 [1] = KEYMAP( /* Wilba Alternate */
   ESC,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,    BSPC,
   TAB,  A,    S,    D,    F,    G,    H,    J,    K,    L,    SCLN, QUOT,
   LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, DOT,  SLSH, ENT,
-  LCTL, LGUI, LALT, RSFT, FN1,  SPC,        FN2,  LEFT, DOWN, UP,   RGHT),
+  LCTL, LGUI, LALT, RSFT, MO2,  SPC,        MO3,  LEFT, DOWN, UP,   RGHT),
 [2] = KEYMAP( /* Wilba LOWER */
   TRNS, 1,    2,    3,    4,    5,    6,    7,    8,    9,    0,    TRNS,
   TRNS, F11,  F12,  LBRC, RBRC, FN20, EQL,  FN23, FN24, MINS, FN21, TRNS,
   TRNS, BSLS, GRV,  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
-  TRNS, TRNS, TRNS, TRNS, FN1,  TRNS,       TRNS, MNXT, VOLD, VOLU, MPLY),
+  TRNS, TRNS, TRNS, TRNS, MO2,  TRNS,       TRNS, MNXT, VOLD, VOLU, MPLY),
 [3] = KEYMAP( /* Wilba RAISE */
   TRNS, FN10, FN11, FN12, FN13, FN14, FN15, FN16, FN17, FN18, FN19, TRNS,
   TRNS, F1,   F2,   F3,   F4,   F5,   F6,   F7,   F8,   F9,   F10,  TRNS,  
   TRNS, FN25, FN22, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
-  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,       FN2,  TRNS, TRNS, TRNS, TRNS),
+  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,       MO3,  TRNS, TRNS, TRNS, TRNS),
 };
 const uint16_t PROGMEM fn_actions[] = {
-    [1] = ACTION_LAYER_MOMENTARY(2),  // LOWER
-    [2] = ACTION_LAYER_MOMENTARY(3),  // RAISE
-
     [3] = ACTION_DEFAULT_LAYER_SET(0),  
     [4] = ACTION_DEFAULT_LAYER_SET(1),