+                                       ->arrayNode('index')
+                                               ->addDefaultsIfNotSet()
+                                               ->children()
+                                                       ->arrayNode('route')
+                                                               ->treatNullLike([])
+                                                               ->defaultValue($defaults['index']['route'])
+                                                               ->scalarPrototype()->end()
+                                                       ->end()
+                                                       ->arrayNode('view')
+                                                               ->addDefaultsIfNotSet()
+                                                               ->children()
+                                                                       ->scalarNode('name')->cannotBeEmpty()->defaultValue($defaults['index']['view']['name'])->end()
+                                                                       ->arrayNode('context')
+                                                                               ->treatNullLike([])
+                                                                               ->defaultValue($defaults['index']['view']['context'])
+                                                                               ->variablePrototype()->end()
+                                                                       ->end()
+                                                               ->end()
+                                                       ->end()
+                                               ->end()
+                                       ->end()