diff --git a/keyboards/atreus62/atreus62.h b/keyboards/atreus62/atreus62.h
index ca5cda8a8..d0bf68adc 100644
--- a/keyboards/atreus62/atreus62.h
+++ b/keyboards/atreus62/atreus62.h
@@ -35,8 +35,8 @@ void promicro_bootloader_jmp(bool program);
     { KC_##k00, KC_##k01, KC_##k02, KC_##k03, KC_##k04, KC_##k05, KC_NO,    KC_##k06, KC_##k07, KC_##k08, KC_##k09, KC_##k0a, KC_##k0b }, \
     { KC_##k10, KC_##k11, KC_##k12, KC_##k13, KC_##k14, KC_##k15, KC_NO,    KC_##k16, KC_##k17, KC_##k18, KC_##k19, KC_##k1a, KC_##k1b }, \
     { KC_##k20, KC_##k21, KC_##k22, KC_##k23, KC_##k24, KC_##k25, KC_NO,    KC_##k26, KC_##k27, KC_##k28, KC_##k29, KC_##k2a, KC_##k2b }, \
-    { KC_##k30, KC_##k31, KC_##k32, KC_##k33, KC_##k34, KC_##k35, KC_##k46, KC_##k36, KC_##k37, KC_##k38, KC_##k39, KC_##k3a, KC_##k3b }, \
-    { KC_##k40, KC_##k41, KC_##k42, KC_##k43, KC_##k44, KC_##k45, KC_##k47, KC_##k48, KC_##k49, KC_##k4a, KC_##k4b, KC_##k4c, KC_##k4d } \
+    { KC_##k30, KC_##k31, KC_##k32, KC_##k33, KC_##k34, KC_##k35, KC_##k47, KC_##k36, KC_##k37, KC_##k38, KC_##k39, KC_##k3a, KC_##k3b }, \
+    { KC_##k40, KC_##k41, KC_##k42, KC_##k43, KC_##k44, KC_##k45, KC_##k46, KC_##k48, KC_##k49, KC_##k4a, KC_##k4b, KC_##k4c, KC_##k4d } \
 }
 
 #endif
diff --git a/keyboards/atreus62/keymaps/atreus52/Makefile b/keyboards/atreus62/keymaps/atreus52/Makefile
new file mode 100644
index 000000000..efa309d20
--- /dev/null
+++ b/keyboards/atreus62/keymaps/atreus52/Makefile
@@ -0,0 +1,4 @@
+NKRO_ENABLE = true
+MOUSEKEY_ENABLE = no
+EXTRAKEY_ENABLE = yes
+CONSOLE_ENABLE = no
diff --git a/keyboards/atreus62/keymaps/atreus52/README.md b/keyboards/atreus62/keymaps/atreus52/README.md
new file mode 100644
index 000000000..245df7deb
--- /dev/null
+++ b/keyboards/atreus62/keymaps/atreus52/README.md
@@ -0,0 +1,10 @@
+<!-- -*- mode: markdown; fill-column: 8192 -*- -->
+
+Atreus52 Modification
+=======================
+
+Firmware for my custom keyboard based on the Atreus layout, but with 5 rows and only 5 columns per hand.
+More documentation coming soon.
+
+# License
+  GPL-3+
diff --git a/keyboards/atreus62/keymaps/atreus52/config.h b/keyboards/atreus62/keymaps/atreus52/config.h
new file mode 100644
index 000000000..ba0eaf0db
--- /dev/null
+++ b/keyboards/atreus62/keymaps/atreus52/config.h
@@ -0,0 +1,18 @@
+#include "../../config.h"
+
+#undef MANUFACTURER
+#undef PRODUCT
+#undef DESCRIPTION
+#undef MATRIX_ROW_PINS
+#undef MATRIX_COL_PINS
+#undef DIODE_DIRECTION
+
+/* USB Device descriptor parameter */
+#define MANUFACTURER    Mesh Industries
+#define PRODUCT         Atreus52 Treeboard
+#define DESCRIPTION     q.m.k. keyboard firmware for Atreus52
+
+#define MATRIX_ROW_PINS { C6, D7, E6, B4, B5 }
+#define MATRIX_COL_PINS { B2, B1, F7, F6, F5, F4, B6, D3, D2, D1, D0, D4, B3 }
+
+#define DIODE_DIRECTION COL2ROW
diff --git a/keyboards/atreus62/keymaps/atreus52/keymap.c b/keyboards/atreus62/keymaps/atreus52/keymap.c
new file mode 100644
index 000000000..4adfb9e3c
--- /dev/null
+++ b/keyboards/atreus62/keymaps/atreus52/keymap.c
@@ -0,0 +1,99 @@
+#include "atreus62.h"
+
+// Layers
+#define DVORAK 0
+#define QWERTY 1
+#define RAISE 2
+#define LOWER 3
+#define BDO 4
+#define RESETL 5
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[DVORAK] = KC_KEYMAP(
+    NO, 1,    2,    3,    4,    5,                6,    7,    8,    9,    0,    NO, \
+    NO, QUOT, COMM, DOT,  P,    Y,                F,    G,    C,    R,    L,    NO, \
+    NO, A,    O,    E,    U,    I,                D,    H,    T,    N,    S,    NO, \
+    NO, SCLN, Q,    J,    K,    X,                B,    M,    W,    V,    Z,    NO, \
+    NO, FN2,  LALT, LCTL, FN1,  LSFT, BSPC, ENT,  SPC,  FN0,  LGUI, LEFT, RGHT, NO  ),
+
+[QWERTY] = KC_KEYMAP(
+    NO, 1,    2,    3,    4,    5,                6,    7,    8,    9,    0,    NO, \
+    NO, Q,    W,    E,    R,    T,                Y,    U,    I,    O,    P,    NO, \
+    NO, A,    S,    D,    F,    G,                H,    J,    K,    L,    SCLN, NO, \
+    NO, Z,    X,    C,    V,    B,                N,    M,    COMM, DOT,  SLSH, NO, \
+    NO, FN2,  LALT, LCTL, FN1,  LSFT, BSPC, ENT,  SPC,  FN0,  LGUI, LEFT, RGHT, NO  ),
+
+[RAISE] = KC_KEYMAP(
+    NO, MRWD, MPRV, MPLY, MNXT, MFFD,             TRNS, MUTE, VOLD, VOLU, DEL,  NO, \
+    NO, TILD, GRV,  LCBR, RCBR, DQUO,             QUOT, EQL,  PLUS, MINS, QUES, NO, \
+    NO, ESC,  TAB,  LPRN, RPRN, BSLS,             SLSH, LEFT, DOWN, UP,   RGHT, NO, \
+    NO, TRNS, TRNS, LBRC, RBRC, TRNS,             INS,  PIPE, UNDS, TRNS, TRNS, NO, \
+    NO, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, FN3,  NO  ),
+
+[LOWER] = KC_KEYMAP(
+    NO, TRNS, TRNS, TRNS, TRNS, TRNS,             TRNS, TRNS, TRNS, TRNS, TRNS, NO, \
+    NO, EXLM, AT,   HASH, DLR,  PERC,             CIRC, AMPR, ASTR, LPRN, RPRN, NO, \
+    NO, 1,    2,    3,    4,    5,                6,    7,    8,    9,    0,    NO, \
+    NO, TRNS, TRNS, TRNS, TRNS, TRNS,             TRNS, DOT,  TRNS, TRNS, TRNS, NO, \
+    NO, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, NO  ),
+
+[BDO] = KC_KEYMAP(
+    NO, ESC,  1,    2,    3,    4,                5,    0,    SLSH, U,    C,    NO, \
+    NO, TAB,  Q,    W,    E,    R,                6,    Y,    I,    O,    P,    NO, \
+    NO, LSFT, A,    S,    D,    F,                7,    G,    H,    J,    K,    NO, \
+    NO, T,    Z,    X,    C,    V,                8,    B,    N,    M,    L,    NO, \
+    NO, LCTL, SPC,  SPC,  SPC,  SPC,  COMM, ENT,  9,    NO,   NO,   NO,   FN2,  NO  ),
+
+[RESETL] = KEYMAP(
+    KC_NO, RESET, KC_NO, KC_NO, KC_NO, KC_NO,               KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, \
+    KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,               KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, \
+    KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,               KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, \
+    KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO,               KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, \
+    KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_FN3,KC_NO  )
+
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+    [0] = ACTION_LAYER_MOMENTARY(RAISE), // Raise layer
+    [1] = ACTION_LAYER_MOMENTARY(LOWER), // Lower layer
+    [2] = ACTION_LAYER_TOGGLE(BDO), // BDO layer
+    [3] = ACTION_LAYER_TOGGLE(RESETL) // RESET layer
+};
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+    // MACRODOWN only works in this function
+    switch (id) {
+    case 0:
+        if (record->event.pressed) {
+            register_code(KC_RSFT);
+        }
+        else {
+            unregister_code(KC_RSFT);
+        }
+        break;
+    }
+    return MACRO_NONE;
+};
+
+static uint8_t qw_dv_swap_state = 0;
+
+bool process_record_user (uint16_t keycode, keyrecord_t *record) {
+    if (keycode == KC_LGUI) {
+        if (record->event.pressed)
+            qw_dv_swap_state |= 0b00000001;
+        else
+            qw_dv_swap_state &= ~(0b00000001);
+    }
+    if (keycode == KC_LCTL) {
+        if (record->event.pressed)
+            qw_dv_swap_state |= 0b00000010;
+        else
+            qw_dv_swap_state &= ~(0b00000010);
+    }
+
+    if (qw_dv_swap_state == 0b00000011) {
+        layer_invert(DVORAK);
+    }
+    return true;
+}