diff --git a/tiramisu/api.py b/tiramisu/api.py
index 3d269a3..f4c42c4 100644
--- a/tiramisu/api.py
+++ b/tiramisu/api.py
@@ -1250,9 +1250,9 @@ class _TiramisuContextConfig(TiramisuContext, _TiramisuContextConfigReset):
         return self._config_bag.context.impl_getname()
 
     def copy(self,
-                  session_id=None,
-                  persistent=False,
-                  storage=None):
+             session_id=None,
+             persistent=False,
+             storage=None):
         return Config(self._config_bag.context.duplicate(session_id,
                                                          persistent=persistent,
                                                          storage=storage))
@@ -1303,7 +1303,27 @@ class _TiramisuContextGroupConfig(TiramisuContext):
         config = self._config_bag.context
         for spath in spaths:
             config = config.getconfig(spath)
-        return Config(config)
+
+    def copy(self,
+             session_id=None,
+             persistent=False,
+             storage=None):
+        return Config(self._config_bag.context.duplicate(session_id,
+                                                         persistent=persistent,
+                                                         storage=storage))
+
+    def deepcopy(self,
+                  session_id=None,
+                  persistent=False,
+                  storage=None,
+                  metaconfig_prefix=None):
+        return Config(self._config_bag.context.duplicate(session_id,
+                                                         persistent=persistent,
+                                                         storage=storage,
+                                                         metaconfig_prefix=metaconfig_prefix,
+                                                         deep=True))
+
+       return Config(config)
 
     def path(self):
         return self._config_bag.context.cfgimpl_get_config_path()