diff --git a/src/Model/Study.py b/src/Model/Study.py
index 6b96cc9e..e68fcc1f 100644
--- a/src/Model/Study.py
+++ b/src/Model/Study.py
@@ -502,3 +502,18 @@ class Study(SQLModel):
             self.status.set_as_read_only()
         else:
             self.status.set_as_editable()
+
+    def duplicate_current_scenario(self):
+        source = self.status.scenario_id
+        new = self.scenarios.new(
+            self.status.scenario.parent
+        )
+
+        self.river._data_traversal(
+            predicate=lambda obj: obj._owner_scenario == source,
+            execute=lambda obj: obj.set_owner_scenario(),
+            data={}
+        )
+
+        self.status.set_as_editable()
+        return new
diff --git a/src/Model/Tools/PamhyrDB.py b/src/Model/Tools/PamhyrDB.py
index 3314960f..4b48f5c6 100644
--- a/src/Model/Tools/PamhyrDB.py
+++ b/src/Model/Tools/PamhyrDB.py
@@ -202,7 +202,7 @@ class SQLSubModel(PamhyrID):
         self._owner_scenario = self._status.scenario_id
         self._status.modified()
 
-    def set_owner_scenario_if(self, predicate):
+    def set_owner_scenario(self):
         """Set study status the object owner_scenario to current
         scenario if predicate(scenario_id) is true
 
@@ -215,9 +215,8 @@ class SQLSubModel(PamhyrID):
         if self._status is None:
             return
 
-        if predicate(self._owner_scenario):
-            self._owner_scenario = self._status.scenario_id
-            self._status.modified()
+        self._owner_scenario = self._status.scenario_id
+        self._status.modified()
 
     def is_deleted(self):
         """This object is deleted?
diff --git a/src/Model/Tools/PamhyrDict.py b/src/Model/Tools/PamhyrDict.py
index 9a890d55..d27e02c9 100644
--- a/src/Model/Tools/PamhyrDict.py
+++ b/src/Model/Tools/PamhyrDict.py
@@ -82,20 +82,27 @@ class PamhyrModelDict(SQLSubModel):
         self.set(key, new)
         return new
 
-    def rec_set_owner_scenario_if(self, predicate):
-        """Set study status the object owner_scenario to current
-        scenario if predicate(scenario_id) is true
+    def _data_traversal(self,
+                        predicate=lambda obj, data: True,
+                        modifier=lambda obj, data: None,
+                        data={}):
+        """Traversal data and execute modifier fonction if predicate
+        true
 
         Args:
-            predicate: Function predicate on owner_scenario id
+            predicate: Function predicate, take current obj and data as input
+            modifier: Function modifier, take current obj and data as input
 
         Returns:
             Nothing
-        """
-        self.set_owner_scenario_if(predicate)
 
-        for k in self._lst:
-            self._dict[key].set_owner_scenario_if(predicate)
+        """
+        if predicate(self, data):
+            modifier(self, data)
+
+        for key in self._lst:
+            self._dict[key]\
+                ._data_traversal(predicate, modifier, data)
 
     def new(self, key):
         raise NotImplementedMethodeError(self, self.new)
diff --git a/src/Model/Tools/PamhyrList.py b/src/Model/Tools/PamhyrList.py
index d757a2d4..abc128df 100644
--- a/src/Model/Tools/PamhyrList.py
+++ b/src/Model/Tools/PamhyrList.py
@@ -85,20 +85,26 @@ class PamhyrModelList(SQLSubModel):
         if self._status is not None:
             self._status.modified()
 
-    def rec_set_owner_scenario_if(self, predicate):
-        """Set study status the object owner_scenario to current
-        scenario if predicate(scenario_id) is true
+    def _data_traversal(self,
+                        predicate=lambda obj, data: True,
+                        modifier=lambda obj, data: None,
+                        data={}):
+        """Traversal data and execute modifier fonction if predicate
+        true
 
         Args:
-            predicate: Function predicate on owner_scenario id
+            predicate: Function predicate, take current obj and data as input
+            modifier: Function modifier, take current obj and data as input
 
         Returns:
             Nothing
+
         """
-        self.set_owner_scenario_if(predicate)
+        if predicate(self, data):
+            modifier(self, data)
 
         for el in self._lst:
-            el.set_owner_scenario_if(predicate)
+            el._data_traversal(predicate, modifier, data)
 
     def new(self, index):
         """Create new elements and add it to list
diff --git a/src/Model/Tools/PamhyrListExt.py b/src/Model/Tools/PamhyrListExt.py
index 870d4b7a..b3580cc6 100644
--- a/src/Model/Tools/PamhyrListExt.py
+++ b/src/Model/Tools/PamhyrListExt.py
@@ -90,20 +90,26 @@ class PamhyrModelList(SQLSubModel):
         if self._status is not None:
             self._status.modified()
 
-    def rec_set_owner_scenario_if(self, predicate):
-        """Set study status the object owner_scenario to current
-        scenario if predicate(scenario_id) is true
+    def _data_traversal(self,
+                        predicate=lambda obj, data: True,
+                        modifier=lambda obj, data: None,
+                        data={}):
+        """Traversal data and execute modifier fonction if predicate
+        true
 
         Args:
-            predicate: Function predicate on owner_scenario id
+            predicate: Function predicate, take current obj and data as input
+            modifier: Function modifier, take current obj and data as input
 
         Returns:
             Nothing
+
         """
-        self.set_owner_scenario_if(predicate)
+        if predicate(self, data):
+            modifier(self, data)
 
         for el in self._lst:
-            el.set_owner_scenario_if(predicate)
+            el._data_traversal(predicate, modifier, data)
 
     def new(self, index):
         """Create new elements and add it to list