diff --git a/addons/medical_gui/functions/fnc_onKeyDown.sqf b/addons/medical_gui/functions/fnc_onKeyDown.sqf
index 27496e643b..6b9013f8be 100644
--- a/addons/medical_gui/functions/fnc_onKeyDown.sqf
+++ b/addons/medical_gui/functions/fnc_onKeyDown.sqf
@@ -5,20 +5,25 @@
  * Handles keyboard inputs in medical menu.
  *
  * Arguments:
- * 0: Menu display <DISPLAY>
- * 1: Key being pressed <NUMBER>
- * 2: Shift state <BOOL>
- * 3: Ctrl state <BOOL>
- * 4: Alt state <BOOL>
+ * 1: Args <ARRAY>
+ * - 0: Menu display <DISPLAY>
+ * - 1: Key being pressed <NUMBER>
+ * - 2: Shift state <BOOL>
+ * - 3: Ctrl state <BOOL>
+ * - 4: Alt state <BOOL>
  *
  * Return Value:
  * None
  *
+ * Example:
+ * ["", [displayNull, 5, false, false, false]] call ace_medical_gui_fnc_onKeyDown
+ *
  * Public: No
 */
 // TODO: Is the airway category ever visible? Can the dynamic category stuff be removed?
 
 #define NUMBER_KEYS [DIK_1, DIK_2, DIK_3, DIK_4, DIK_5, DIK_6, DIK_7, DIK_8, DIK_9, DIK_0]
+#define ALL_CATEGORIES ["triage", "examine", "bandage", "medication", "airway", "advanced", "drag", "toggle"]
 
 params ["", "_args"];
 _args params ["_display", "_keyPressed", "_shiftState", "_ctrlState", "_altState"];
@@ -40,16 +45,23 @@ private _allCategories = ["triage", "examine"] + _visibleCategories + ["toggle"]
 private _keyCategoryPairs = _allCategories createHashMapFromArray NUMBER_KEYS;
 
 private _temp_category = "";
+private _temp_idc = 0;
 
 switch (true) do {
 // Dynamically assign number keys to visible categories
     {
         _temp_category = _x; // _x does not exist inside case code
-        case (_keyPressed == _y): {
-            GVAR(selectedCategory) = _temp_category;
-            if (_temp_category == "toggle") then {
-                call FUNC(handleToggle);
-            }
+        _temp_idc = IDC_TRIAGE + (ALL_CATEGORIES find _temp_category) * 10;
+        case (_keyPressed == _y && {GVAR(selectedCategory) != _temp_category}): {
+            if (ctrlEnabled _temp_idc) then {
+                if (_temp_category == "toggle") then {
+                    call FUNC(handleToggle);
+                } else {
+                    GVAR(selectedCategory) = _temp_category;
+                };
+            } else {
+                _return = false;
+            };
         };
     } forEach _keyCategoryPairs;
 
@@ -57,22 +69,22 @@ switch (true) do {
 //     w
 //   a s d
 //    z x
-    case (_keyPressed == DIK_W): {
+    case (_keyPressed == DIK_W && {GVAR(selectedBodyPart) != 0}): {
         GVAR(selectedBodyPart) = 0;
     };
-    case (_keyPressed == DIK_S): {
+    case (_keyPressed == DIK_S && {GVAR(selectedBodyPart != 1)}): {
         GVAR(selectedBodyPart) = 1;
     };
-    case (_keyPressed == DIK_D): {
+    case (_keyPressed == DIK_D && {GVAR(selectedBodyPart) != 2}): {
         GVAR(selectedBodyPart) = 2;
     };
-    case (_keyPressed == DIK_A): {
+    case (_keyPressed == DIK_A && {GVAR(selectedBodyPart) != 3}): {
         GVAR(selectedBodyPart) = 3;
     };
-    case (_keyPressed == DIK_X): {
+    case (_keyPressed == DIK_X && {GVAR(selectedBodyPart) != 4}): {
         GVAR(selectedBodyPart) = 4;
     };
-    case (_keyPressed == DIK_Z): {
+    case (_keyPressed == DIK_Z && {GVAR(selectedBodyPart) != 5}): {
         GVAR(selectedBodyPart) = 5;
     };
 
@@ -81,4 +93,8 @@ switch (true) do {
     };
 };
 
+if (_return) then {
+    playSound ["SoundClick", true]
+};
+
 _return