diff --git a/keyboards/planck/keymaps/urob/keymap.c b/keyboards/planck/keymaps/urob/keymap.c
index a38667493b64..6133d65d169a 100644
--- a/keyboards/planck/keymaps/urob/keymap.c
+++ b/keyboards/planck/keymaps/urob/keymap.c
@@ -312,11 +312,11 @@ bool get_tapping_force_hold(uint16_t keycode, keyrecord_t *record) {
 // Per key permissive hold settings
 bool get_permissive_hold(uint16_t keycode, keyrecord_t *record) {
     switch (keycode) {
-        case HOME_A:
-        case HOME_R:
-        case HOME_I:
-        case HOME_O:
-            return false;  /* disable permissive hold for Alt and Gui */
+//        case HOME_A:
+//        case HOME_R:
+//        case HOME_I:
+//        case HOME_O:
+//            return false;  /* disable permissive hold for Alt and Gui */
         default:
             return true;   /* enable per default */
     }
@@ -363,3 +363,10 @@ bool get_combo_must_tap(uint16_t index, combo_t *combo) {
     return false;
 
 }
+
+// customize bilateral combinations, needs 605ecc6c3b4141a930544ca4a35488d1497df967
+bool get_bilateral_combinations(keypos_t *hold, keypos_t *tap) {
+  bool same     = (hold->row < MATRIX_ROWS / 2) == (tap->row < MATRIX_ROWS / 2);
+  bool top_rows = same && (tap->col < 3); // bottom row does not activate bilateral combinations
+  return top_rows;
+}
diff --git a/tmk_core/common/action.c b/tmk_core/common/action.c
index f744942dd57c..8818e12b1e4d 100644
--- a/tmk_core/common/action.c
+++ b/tmk_core/common/action.c
@@ -257,36 +257,24 @@ void register_button(bool pressed, enum mouse_buttons button) {
 #endif
 
 #ifdef BILATERAL_COMBINATIONS
+__attribute__((weak)) bool get_bilateral_combinations(keypos_t *hold, keypos_t *tap) { return false; }
+
 static struct {
-    bool active;
-    uint8_t code;
-    uint8_t tap;
-    uint8_t mods;
-    bool left;
+    uint8_t  code;
+    uint8_t  tap;
+    uint8_t  mods;
+    keypos_t pos;
 #    if (BILATERAL_COMBINATIONS + 0)
     uint16_t time;
 #    endif
-} bilateral_combinations = { false };
-
-static bool bilateral_combinations_left(keypos_t key) {
-#    ifdef SPLIT_KEYBOARD
-    return key.row < MATRIX_ROWS / 2;
-#    else
-    if (MATRIX_COLS > MATRIX_ROWS) {
-        return key.col < MATRIX_COLS / 2;
-    } else {
-        return key.row < MATRIX_ROWS / 2;
-    }
-#    endif
-}
+} bilateral_combinations = {0};
 
 static void bilateral_combinations_hold(action_t action, keyevent_t event) {
     dprint("BILATERAL_COMBINATIONS: hold\n");
-    bilateral_combinations.active = true;
     bilateral_combinations.code = action.key.code;
-    bilateral_combinations.tap = action.layer_tap.code;
+    bilateral_combinations.tap  = action.layer_tap.code;
     bilateral_combinations.mods = (action.kind.id == ACT_LMODS_TAP) ? action.key.mods : action.key.mods << 4;
-    bilateral_combinations.left = bilateral_combinations_left(event.key);
+    bilateral_combinations.pos  = event.key;
 #    if (BILATERAL_COMBINATIONS + 0)
     bilateral_combinations.time = event.time;
 #    endif
@@ -294,15 +282,15 @@ static void bilateral_combinations_hold(action_t action, keyevent_t event) {
 
 static void bilateral_combinations_release(uint8_t code) {
     dprint("BILATERAL_COMBINATIONS: release\n");
-    if (bilateral_combinations.active && (code == bilateral_combinations.code)) {
-        bilateral_combinations.active = false;
+    if (bilateral_combinations.code && code == bilateral_combinations.code) {
+        bilateral_combinations.code = 0;
     }
 }
 
 static void bilateral_combinations_tap(keyevent_t event) {
     dprint("BILATERAL_COMBINATIONS: tap\n");
-    if (bilateral_combinations.active) {
-        if (bilateral_combinations_left(event.key) == bilateral_combinations.left) {
+    if (bilateral_combinations.code) {
+        if (get_bilateral_combinations(&bilateral_combinations.pos, &event.key)) {
 #    if (BILATERAL_COMBINATIONS + 0)
             if (TIMER_DIFF_16(event.time, bilateral_combinations.time) > BILATERAL_COMBINATIONS) {
                 dprint("BILATERAL_COMBINATIONS: timeout\n");
@@ -313,7 +301,7 @@ static void bilateral_combinations_tap(keyevent_t event) {
             unregister_mods(bilateral_combinations.mods);
             tap_code(bilateral_combinations.tap);
         }
-        bilateral_combinations.active = false;
+        bilateral_combinations.code = 0;
     }
 }
 #endif