diff --git a/README.md b/README.md
index 4190b216..06521c25 100644
--- a/README.md
+++ b/README.md
@@ -82,7 +82,7 @@ All base layers share the same thumb cluster:
  ─── ───┼───┼───┼───┼───       ───┼───┼───┼───┼─── ───
  (⌘)│F9 │F10│F11│F12│ ¢         0 │ 1 │ 2 │ 3 │ , │(⌘)
                ───┌───┬───┐ ┌───┬───┐───
-                $ │Sft│(v)│ │Bsp│Spc│App
+                ¥ │Sft│(v)│ │Bsp│Spc│ $
                ───└───┴───┘ └ATT┴─⇧─┘───
 ```
 
diff --git a/keyboards/bastardkb/charybdis/3x6/v2/splinky_3/keymaps/struckmb/readme.md b/keyboards/bastardkb/charybdis/3x6/v2/splinky_3/keymaps/struckmb/readme.md
index d60a5754..639ce63f 100644
--- a/keyboards/bastardkb/charybdis/3x6/v2/splinky_3/keymaps/struckmb/readme.md
+++ b/keyboards/bastardkb/charybdis/3x6/v2/splinky_3/keymaps/struckmb/readme.md
@@ -94,7 +94,7 @@ All base layers share the same thumb cluster:
  ─── ───┼───┼───┼───┼───       ───┼───┼───┼───┼─── ───
  (⌘)│F9 │F10│F11│F12│ ¢         0 │ 1 │ 2 │ 3 │ , │(⌘)
                ───┌───┬───┐ ┌───┬───┐───
-                $ │Sft│(v)│ │Bsp│Spc│App
+                ¥ │Sft│(v)│ │Bsp│Spc│ $
                ───└───┴───┘ └ATT┴─⇧─┘───
 ```
 
diff --git a/qmk.json b/qmk.json
index 496033d3..71874cb3 100644
--- a/qmk.json
+++ b/qmk.json
@@ -4,4 +4,4 @@
         ["cantor", "struckmb"],
         ["bastardkb/charybdis/3x6/v2/splinky_3", "struckmb"]
     ]
-}
\ No newline at end of file
+}
diff --git a/users/struckmb/struckmb.c b/users/struckmb/struckmb.c
index a42f0d48..e4c3a3d1 100644
--- a/users/struckmb/struckmb.c
+++ b/users/struckmb/struckmb.c
@@ -63,13 +63,13 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
                         unregister_code16(KC_BRMD);
                     }
                     return false;
-#ifdef MOUSEKEY_ENABLE
+#    ifdef MOUSEKEY_ENABLE
                 case MS_CSB1:
                     if (record->event.pressed) {
                         tap_code16(S(G(KC_BTN1)));
                     }
                     return false;
-#endif // MOUSEKEY_ENABLE
+#    endif // MOUSEKEY_ENABLE
             }
             break;
 
@@ -279,6 +279,13 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
                         unregister_code16(ALGR(DE_N));
                     }
                     return false;
+                case DE_YEN:
+                    if (record->event.pressed) {
+                        register_code16(S(ALGR(DE_Z)));
+                    } else {
+                        unregister_code16(S(ALGR(DE_Z)));
+                    }
+                    return false;
                 case KC_CUT:
                     if (record->event.pressed) {
                         tap_code16(S(KC_DEL));
@@ -294,13 +301,13 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
                         tap_code16(S(KC_INS));
                     }
                     return false;
-#ifdef MOUSEKEY_ENABLE
+#    ifdef MOUSEKEY_ENABLE
                 case MS_CSB1:
                     if (record->event.pressed) {
                         tap_code16(S(C(KC_BTN1)));
                     }
                     return false;
-#endif // MOUSEKEY_ENABLE
+#    endif // MOUSEKEY_ENABLE
             }
             break;
 
diff --git a/users/struckmb/struckmb.h b/users/struckmb/struckmb.h
index 5f829b6f..301ac8d4 100644
--- a/users/struckmb/struckmb.h
+++ b/users/struckmb/struckmb.h
@@ -331,7 +331,7 @@ void symR_reset(tap_dance_state_t *state, void *user_data);
 #    define _PR3_6_ _PR3_5_, _ADD_R_3_
 //
 #    define _PL4_2_ KC_BTN1, KC_BTN2
-#    define _PL4_3_ MS_GSB1, _PL4_2_
+#    define _PL4_3_ MS_CSB1, _PL4_2_
 #    define _PR4_2_ KC_BTN3, KC_BTN1
 #    define _PR4_3_ _PR4_2_, MS_CSB1
 //
@@ -355,9 +355,9 @@ void symR_reset(tap_dance_state_t *state, void *user_data);
 #define _LR3_6_ _LR3_5_, _ADD_R_3_
 //
 #define _LL4_2_ KC_LSFT, KC_TRNS
-#define _LL4_3_ DE_DLR, _LL4_2_
+#define _LL4_3_ DE_YEN, _LL4_2_
 #define _LR4_2_ ATT(KC_BSPC), SFT_SPC
-#define _LR4_3_ _LR4_2_, KC_APP
+#define _LR4_3_ _LR4_2_, DE_DLR
 //
 #define _LOWER_3x5_ _LL1_5_, _LR1_5_, _LL2_5_, _LR2_5_, _LL3_5_, _LR3_5_
 #define _LOWER_3x6_ _LL1_6_, _LR1_6_, _LL2_6_, _LR2_6_, _LL3_6_, _LR3_6_