diff --git a/config/corne.keymap b/config/corne.keymap
index 70b5349..e8043a4 100644
--- a/config/corne.keymap
+++ b/config/corne.keymap
@@ -13,13 +13,25 @@
 #define SYMBOLE     1
 #define NAVIGATION  2
 
+/* ================
+ * MACRO DEFINITION
+ * ================
+ */
+
+
+
+/* =================
+ * KEYMAP DEFINITION
+ * =================
+ */
+
 / {
         keymap {
                 compatible = "zmk,keymap";
 
                 DEFAULT {
 // -----------------------------------------------------------------------------------------
-// |  - _ |  Q  |  W  |  F  |  P  |  B  |   |  J  |  L   |  U  |  Y  |  ;  |  + = |
+// |  - _ |  Q  |  W  |  F  |  P  |  Bootloader (B)  |   |  J  |  L   |  U  |  Y  |  ;  |  + = |
 // | TAB  |  A  |  R  |  S  |  T  |  G  |   |  M  |  N   |  E  |  I  |  O  |  GUI |
 // | ESC  |  Z  |  X  |  C  |  D  |  V  |   |  K  |  H   |  ,< |  .> |  /? |  ~ ` |
 //                    | ENT | SPC | BCK |   | SYM | SHFT | '"  |
@@ -48,13 +60,13 @@
 // -----------------------------------------------------------------------------------------
 // |      |     |  ⇧  |  ↑  |  ⇩  |     |   |     |     |     |     |     |      |
 // |      |HOME |  ←  |  ↓  |  →  | END |   |     |     |     |     |     |      |
-// |      |     |     |     |     |     |   |     |     |     |     |     |      |
+// |      |     |CTL+←|     |CTL+→|     |   |     |     |     |     |     |      |
 //                    |     |     |     |   |     |     |     |
                         bindings = <
-   &none   &none      &kp PG_UP  &kp UP   &kp PG_DN  &none           &none &none &none &none &none &none
-   &none   &kp HOME   &kp LEFT   &kp DOWN &kp RIGHT  &kp END         &none &none &none &none &none &none
-   &none   &none      &none      &none    &none      &none           &none &none &none &none &none &none
-                                 &none    &none      &none           &none &none &none           
+   &none   &none      &kp PG_UP    &kp UP   &kp PG_DN     &none           &none &none &none &none &none &none
+   &none   &kp HOME   &kp LEFT     &kp DOWN &kp RIGHT     &kp END         &none &none &none &none &none &none
+   &none   &none      &kp LC(LEFT) &none    &kp LC(RIGHT) &none           &none &none &none &none &none &none
+                                   &none    &none         &none           &none &none &none           
                         >;
                 };
         };