diff --git a/hurricane/src/viewer/CellWidget.cpp b/hurricane/src/viewer/CellWidget.cpp
index 573dea8e..cffabcde 100644
--- a/hurricane/src/viewer/CellWidget.cpp
+++ b/hurricane/src/viewer/CellWidget.cpp
@@ -2737,6 +2737,31 @@ namespace Hurricane {
   }
 
 
+  void  CellWidget::select ( Occurrences occurrences )
+  {
+    if ( (++_delaySelectionChanged == 1) and not _state->cumulativeSelection() ) {
+      openRefreshSession();
+      unselectAll();
+      closeRefreshSession();
+    }
+
+    bool               selected  = true;
+    // SelectorCriterion* criterion = _state->getSelection().add ( selectArea );
+    // if ( criterion and (not criterion->isEnabled()) ) {
+    //   criterion->enable();
+
+    for ( const Occurrence& occurrence : occurrences ) {
+      if (occurrence.getOwnerCell() == getCell()) {
+        select( occurrence );
+      }
+    }
+    // } else
+    //   selected = false;
+
+    if ( (--_delaySelectionChanged == 0) and selected ) emit selectionChanged( _selectors );
+  }
+
+
   void  CellWidget::select ( Occurrence occurrence )
   {
     if ( (++_delaySelectionChanged == 1) and not _state->cumulativeSelection() ) {
@@ -2860,6 +2885,18 @@ namespace Hurricane {
   }
 
 
+  void  CellWidget::unselect ( Occurrences occurrences )
+  {
+    ++_delaySelectionChanged;
+    for ( const Occurrence& occurrence : occurrences ) {
+      if (occurrence.getOwnerCell() == getCell()) {
+        unselect( occurrence );
+      }
+    }
+    if ( --_delaySelectionChanged == 0 ) emit selectionChanged( _selectors );
+  }
+
+
   void  CellWidget::unselectAll ()
   {
     ++_delaySelectionChanged;
diff --git a/hurricane/src/viewer/hurricane/viewer/CellWidget.h b/hurricane/src/viewer/hurricane/viewer/CellWidget.h
index 51abdff6..3abd74f1 100644
--- a/hurricane/src/viewer/hurricane/viewer/CellWidget.h
+++ b/hurricane/src/viewer/hurricane/viewer/CellWidget.h
@@ -265,12 +265,14 @@ namespace Hurricane {
       inline  DrawingPlanes&            getDrawingPlanes           ();
            // void                      select                     ( const Net* );
               void                      select                     ( Occurrence );
+              void                      select                     ( Occurrences );
               void                      selectSet                  ( const OccurrenceSet& );
               void                      selectSet                  ( const ComponentSet& );
               bool                      isSelected                 ( Occurrence );
               void                      selectOccurrencesUnder     ( Box selectArea );
            // void                      unselect                   ( const Net* );
               void                      unselect                   ( Occurrence );
+              void                      unselect                   ( Occurrences );
               void                      unselectSet                ( const ComponentSet& );
               void                      unselectSet                ( const OccurrenceSet& );
               void                      unselectAll                ();