diff --git a/config.py b/config.py
index dfec6e7..f4fabdd 100644
--- a/config.py
+++ b/config.py
@@ -25,9 +25,11 @@ from error import (HiddenOptionError, ConfigError, NotFoundError,
                             SpecialOwnersError, MandatoryError, MethodCallError, 
                                            DisabledOptionError, ModeOptionError)
 from option import (OptionDescription, Option, SymLinkOption, group_types, 
-                    default_owner ,Multi, apply_requires, modes)
-import autolib
+                    Multi, apply_requires, modes)
 from autolib import special_owners, special_owner_factory
+# ______________________________________________________________________
+# generic owner. 'default' is the general config owner after init time
+default_owner = 'user'
 # ____________________________________________________________
 class Config(object):
     _cfgimpl_hidden = True
diff --git a/option.py b/option.py
index d32101d..9339e12 100644
--- a/option.py
+++ b/option.py
@@ -28,8 +28,6 @@ available_actions = ['hide', 'show', 'enable', 'disable']
 reverse_actions = {'hide': 'show', 'show': 'hide', 
                    'disable':'enable', 'enable': 'disable'}
 # ____________________________________________________________
-# generic owner. 'default' is the general config owner after init time
-default_owner = 'user'
 # OptionDescription authorized group_type values
 group_types = ['default', 'family', 'group', 'master']
 # multi types 
@@ -49,25 +47,28 @@ class Multi(list):
         if value is None:
             owner = 'default'
         else:
-            owner = default_owner
-        self.child.setowner(self.config, owner)
+            owner = self.config._cfgimpl_owner 
+        oldowner = self.child.getowner(self.config)
+        oldowner[key] = owner        
+        self.child.setowner(self.config, oldowner)
         if value != None and not self.child._validate(value):
             raise ConfigError("invalid value {0} "
                 "for option {1}".format(str(value), self.child._name))
-        # FIXME : and if value is None ???
         return super(Multi, self).__setitem__(key, value)
 
     def append(self, value):
         if value is None:
             owner = 'default'
         else:
-            owner = default_owner
-        self.child.setowner(self.config, owner)
+            owner = self.config._cfgimpl_owner 
+        oldowner = self.child.getowner(self.config)
+        oldowner.append(owner)
+        self.child.setowner(self.config, oldowner)
         # changer dans la config la valeur par défaut et le owner
         if value != None and not self.child._validate(value):
             raise ConfigError("invalid value {0} "
                 "for option {1}".format(str(value), self.child._name))
-        self.config._cfgimpl_values[child._name].append(value)
+        super(Multi, self).append(value)
     
 #    def pop(self):
 #        pass 
@@ -163,7 +164,7 @@ class Option(HiddenBaseType, DisabledBaseType, ModeBaseType):
 
     def getowner(self, config):
         # config *must* be only the **parent** config (not the toplevel config) 
-        return config._cfgimpl_owner[self._name]
+        return config._cfgimpl_value_owners[self._name]
 
     def setoption(self, config, value, who):
         "who is **not necessarily** a owner because it cannot be a list"