diff --git a/include/InputSystemComponent.h b/include/InputSystemComponent.h
index 9050f4e..f0be5d4 100644
--- a/include/InputSystemComponent.h
+++ b/include/InputSystemComponent.h
@@ -16,21 +16,22 @@ public:
     void init() override;
     void update() override;
 
-    // void bindAction(const std::string& actionName, Key key, std::function<void()> callback);
+    void bindAction(const std::string& actionName, Key key, std::function<void()> callback);
+    void bindAction(const std::string& actionName, std::vector<Key> keys, std::function<void()> callback);
 
-    template<typename... Keys>
-    void bindAction(const std::string& actionName, std::function<void()> callback, Keys... keys)
-    {
-        static_assert((std::is_same<Keys, Key>::value && ...), "A passed argument for 'Keys' is not of type 'Key'");
+    // template<typename... Keys>
+    // void bindAction(const std::string& actionName, std::function<void()> callback, Keys... keys)
+    // {
+    //     static_assert((std::is_same<Keys, Key>::value && ...), "A passed argument for 'Keys' is not of type 'Key'");
 
-        if (m_actions.find(actionName) == m_actions.end())
-        {
-            m_actions[actionName] = InputAction(actionName, callback);
-        }
-        
-        (m_actions[actionName].keys.push_back(keys), ...);
-        (m_keyToActionsMap[keys].push_back(m_actions[actionName]), ...);
-    }
+    //     if (m_actions.find(actionName) == m_actions.end())
+    //     {
+    //         m_actions[actionName] = InputAction(actionName, callback);
+    //     }
+
+    //     (m_actions[actionName].keys.push_back(keys), ...);
+    //     (m_keyToActionsMap[keys].push_back(m_actions[actionName]), ...);
+    // }
 
     void unbindAction(const std::string& actionName, Key key);
 
diff --git a/src/InputSystemComponent.cpp b/src/InputSystemComponent.cpp
index 9bd66af..0bab05f 100644
--- a/src/InputSystemComponent.cpp
+++ b/src/InputSystemComponent.cpp
@@ -11,17 +11,33 @@ void InputSystemComponent::update()
     handleActions();
 }
 
-// void InputSystemComponent::bindAction(const std::string& actionName, Key key, std::function<void()> callback)
-// {
-//     if (m_actions.find(actionName) == m_actions.end())
-//     {
-//         m_actions[actionName] = InputAction(actionName, callback);
-//     }
+// alternative to template function
+void InputSystemComponent::bindAction(const std::string& actionName, Key key, std::function<void()> callback)
+{
+    if (m_actions.find(actionName) == m_actions.end())
+    {
+        m_actions[actionName] = InputAction(actionName, callback);
+    }
 
-//     m_actions[actionName].keys.push_back(key);
-//     m_keyToActionsMap[key].push_back(m_actions[actionName]);
+    m_actions[actionName].keys.push_back(key);
+    m_keyToActionsMap[key].push_back(m_actions[actionName]);
 
-// }
+}
+
+// alternative to template function
+void InputSystemComponent::bindAction(const std::string& actionName, std::vector<Key> keys, std::function<void()> callback)
+{
+    if (m_actions.find(actionName) == m_actions.end())
+    {
+        m_actions[actionName] = InputAction(actionName, callback);
+    }
+
+    for (Key key : keys)
+    {
+        m_actions[actionName].keys.push_back(key);
+        m_keyToActionsMap[key].push_back(m_actions[actionName]);
+    }
+}
 
 void InputSystemComponent::unbindAction(const std::string& actionName, Key key)
 {