-                       //Iterate on each user configuration keys
-                       foreach($container->getParameter($alias) as $k => $v) {
-                               //Check if value is an array
-                               if (is_array($v)) {
-                                       //Iterate on each array keys
-                                       foreach($v as $sk => $sv) {
-                                               //Check if sub value is an array
-                                               if (is_array($sv)) {
-                                                       //TODO: implement sub sub key merging ? (or recursive ?)
-                                                       @trigger_error('Nested level > 2 not yet implemented here', E_USER_ERROR);
-                                               //Save sub value
-                                               } else {
-                                                       //Trigger changed flag
-                                                       $change = true;
-                                                       //Replace default value with user provided one
-                                                       $config[$alias][$k][$sk] = $sv;
-                                               }
-                                       }
-                               //Save value
-                               } else {
-                                       //Trigger changed flag
-                                       $change = true;
-                                       //Replace default value with user provided one
-                                       $config[$alias][$k] = $v;
-                               }
-                       }