diff --git a/src/settings_manager.hpp b/src/settings_manager.hpp
index bb57637..989da29 100644
--- a/src/settings_manager.hpp
+++ b/src/settings_manager.hpp
@@ -113,7 +113,7 @@ namespace gz {
          *  - in SettingsManager::set: depends on throwExceptionWhenNewValueNotAllowed
          * @see sm_validity 
          */
-        /* util::unordered_string_map<SettingsManagerAllowedValues<CacheTypes...>> allowedValues; */
+        util::unordered_string_map<SettingsManagerAllowedValues<CacheTypes...>> allowedValues;
         /**
          * @brief Wether to throw an exception when trying to set an invalid value
          */  
@@ -488,7 +488,7 @@ namespace gz {
         writeFileOnExit = createInfo.writeFileOnExit;
         throwExceptionWhenNewValueNotAllowed = createInfo.throwExceptionWhenNewValueNotAllowed;
 
-        /* allowedValues = std::move(createInfo.allowedValues); */
+        allowedValues = std::move(createInfo.allowedValues);
         settings = std::move(createInfo.initialValues);
 
         filepath = createInfo.filepath;
@@ -497,11 +497,11 @@ namespace gz {
         }
 
         // erase invalid initalValues 
-        /* for (auto it = settings.begin(); it != settings.end(); it++) { */
-        /*     if (!isValueAllowed<std::string>(it->first, it->second)) { */
-        /*         it = settings.erase(it); */
-        /*     } */
-        /* } */
+        for (auto it = settings.begin(); it != settings.end(); it++) {
+            if (!isValueAllowed<std::string>(it->first, it->second)) {
+                it = settings.erase(it);
+            }
+        }
 
         initCache<void, CacheTypes...>();
     }
@@ -541,18 +541,12 @@ namespace gz {
     template<StringConvertible... CacheTypes>
     template<util::IsInPack<CacheTypes...> T>
     const T& SettingsManager<CacheTypes...>::get(const std::string& key) {
-        static_assert(util::IsInPack<T, CacheTypes...>, "Type T is not in parameter pack CacheTypes...");
-        /* if (!isRegisteredType<T>()) { */
-        /*     throw InvalidType("Invalid type: '" + std::string(typeid(T).name()) + "'", "SettingsManager::get"); */
-        /* } */
         if (!settings.contains(key)) {
             throw InvalidArgument("Invalid key: '" + key + "'", "SettingsManager::get");
         }
         // if not cached -> cache
         if (!settingsCache[typeid(T).name()].contains(key)) {
             try {
-                /* settingsCache[typeid(T).name()][key].emplace(fromString<T>(settings[key])); */
-                /* settingsCache[typeid(T).name()][key](fromString<T>(settings[key])); */
                 settingsCache[typeid(T).name()][key] = std::variant<std::monostate, CacheTypes...>(fromString<T>(settings[key]));
             }
             catch (...) {
@@ -581,9 +575,6 @@ namespace gz {
     template<StringConvertible... CacheTypes>
     template<util::IsInPack<CacheTypes...> T>
     const T& SettingsManager<CacheTypes...>::getOr(const std::string& key, const T& fallback) requires std::copy_constructible<T> {
-        /* if (!isRegisteredType<T>()) { */
-        /*     throw InvalidType("Invalid type: '" + std::string(typeid(T).name()) + "'", "SettingsManager::getOr"); */
-        /* } */
         if (settings.contains(key)) {
             return get<T>(key);
         }
@@ -662,9 +653,6 @@ namespace gz {
     template<StringConvertible... CacheTypes>
     template<util::IsInPack<CacheTypes...> T>
     void SettingsManager<CacheTypes...>::set(const std::string& key, const T& value) {
-        /* if (!isRegisteredType<T>()) { */
-        /*     throw InvalidType("Invalid type: '" + std::string(typeid(T).name()) + "'", "SettingsManager::set<" + std::string(typeid(T).name()) + ">"); */
-        /* } */
         // convert to string
         std::string s;
         try {
@@ -711,44 +699,6 @@ namespace gz {
 //
 // ALLOWED VALUES
 //
-    /* template<StringConvertible... CacheTypes> */
-    /* template<IntegralInPack<std::string, CacheTypes...> T> */
-    /* bool SettingsManager<CacheTypes...>::isValueAllowed(const std::string& key, const T& value) const noexcept { */
-    /*     if (!allowedValues.contains(key)) { */
-    /*         return true; */
-    /*     } */
-    /*     const std::vector<T>* av = nullptr; */
-    /*     try { */
-    /*         av = &std::get<std::vector<T>>(allowedValues.at(key).allowedValues); */
-    /*     } */
-    /*     catch (std::bad_variant_access&) { */
-    /*         return false; */
-    /*     } */
-
-    /*     switch (allowedValues.at(key).type) { */
-    /*         case SM_LIST: { */
-    /*             for (auto it = av->begin(); it != av->end(); it++) { */
-    /*                 if (*it == value) { */
-    /*                     return true; */
-    /*                 } */
-    /*             } */
-    /*         } */
-    /*         break; */
-    /*         case SM_RANGE: { */
-    /*             bool valid = true; */
-    /*             // value >= lowest */ 
-    /*             valid &= value >= av->at(0); */
-    /*             // value < highest */ 
-    /*             valid &= value < av->at(1); */
-    /*             // value == lowest + n * step */
-    /*             valid &= (value - av->at(0)) % av->at(2) == 0; */
-    /*             return valid; */
-    /*         } */
-    /*         break; */
-    /*     } // switch */
-    /*     return false; */
-    /* } */
-
     template<StringConvertible... CacheTypes>
     template<NumberInPack<std::string, CacheTypes...> T>
     bool SettingsManager<CacheTypes...>::isValueAllowed(const std::string& key, const T& value) const noexcept {
@@ -784,6 +734,7 @@ namespace gz {
         } // switch
         return false;
     }
+
     template<StringConvertible... CacheTypes>
     template<NotNumberInPack<std::string, CacheTypes...> T>
     bool SettingsManager<CacheTypes...>::isValueAllowed(const std::string& key, const T& value) const noexcept {