diff --git a/src/InputOutput/IHMImpl/Params/PlotImpl/IHMInputOutputParamsPlotClass.php b/src/InputOutput/IHMImpl/Params/PlotImpl/IHMInputOutputParamsPlotClass.php
index be336fa..ad5c95c 100644
--- a/src/InputOutput/IHMImpl/Params/PlotImpl/IHMInputOutputParamsPlotClass.php
+++ b/src/InputOutput/IHMImpl/Params/PlotImpl/IHMInputOutputParamsPlotClass.php
@@ -93,8 +93,8 @@ class IHMInputOutputParamsPlotClass extends IHMInputOutputParamsAbstractClass
 				$ttIntIndex  = -1;
 				if ($this->isInteractiveRequest && !$isIntervalRequest && !$tab->{'page-superpose-mode'})
 				{
-					$ttFileIndex = !isset($activeTab->{'ttFileIndex'}) ? 0 : $activeTab->{'ttFileIndex'};
-					$ttIntIndex = !isset($activeTab->{'intIndex'}) ? 0 : $activeTab->{'intIndex'};
+					$ttFileIndex = !isset($input->{'ttFileIndex'}) ? 0 : $input->{'ttFileIndex'};
+					$ttIntIndex = !isset($input->{'intIndex'}) ? 0 : $input->{'intIndex'};
 				}
 				$this->unmarshallTimeDefinition($input, $requestIndexInParamData, $ttFileIndex, $ttIntIndex);
 			}
@@ -1436,24 +1436,39 @@ class IHMInputOutputParamsPlotClass extends IHMInputOutputParamsAbstractClass
 	
 	private function unmarshallActionRequest($input)
 	{
+		$actionInput    = $input->{'action'};
+		$multiPlotState = $input->{'multiPlotState'};
+		
 		$plotInput = $this->loadIHMRequest();
 		
 		if (!isset($plotInput))
 			throw new Exception('Cannot retrieve request input for inetractive action.');
 		
-		switch ($input->{'action'})
+		//Set interactive Multi Plot state
+		foreach ($multiPlotState as $key => $value)
+		{
+			foreach ($plotInput->{'tabs'} as $tab)
+			{
+				if (PLOT_RESULT_FILE_KEY."_".$tab->{'id'} == $key)
+					$tab->{'multi-plot-linked'} = $value;
+			}
+		}
+		
+		switch ($actionInput->{'action'})
 		{
 			case 'zoom' :
-				return $this->unmarshallZoom($input, $plotInput);
+				return $this->unmarshallZoom($actionInput, $plotInput);
 			case 'forward' :
 			case 'halfforward' :
 			case 'backward' :
 			case 'halfbackward' :
 			case 'extend' :
 			case 'shift' :
-				return $this->unmarshallNavigation($input, $plotInput);
+				return $this->unmarshallNavigation($actionInput, $plotInput);
 			case 'goto' :
-				return $this->unmarshallTTGoto($input, $plotInput);
+				return $this->unmarshallTTGoto($actionInput, $plotInput);
+			case 'synchronize' :
+				return $this->unmarshallSynchronize($actionInput, $plotInput);
 			default :
 				throw new Exception('Interactive action not implemented.');
 		}
@@ -1491,7 +1506,7 @@ class IHMInputOutputParamsPlotClass extends IHMInputOutputParamsAbstractClass
 				$crtTab->{'startDate'} = $input->{'min'};
 				$crtTab->{'stopDate'} = $input->{'max'};
 			}
-						
+				
 			$plotInput->{'last-plotted-tab'} = $crtTab->{'id'};
 			$this->saveIHMRequest($plotInput);
 			return $plotInput;
@@ -1623,8 +1638,52 @@ class IHMInputOutputParamsPlotClass extends IHMInputOutputParamsAbstractClass
 			throw new Exception('Cannot retrieve plot tab for navigation action.');
 		
 		$plotInput->{'last-plotted-tab'} = $crtTab->{'id'};
-		$crtTab->{'ttFileIndex'} = $input->{'ttFileIndex'};
-		$crtTab->{'intIndex'} = $input->{'intIndex'};
+		
+		if ($crtTab->{'multi-plot-linked'})
+		{
+			$plotInput->{'ttFileIndex'} = $input->{'ttFileIndex'};
+			$plotInput->{'intIndex'} = $input->{'intIndex'};
+		}
+		else
+		{
+			$crtTab->{'ttFileIndex'} = $input->{'ttFileIndex'};
+			$crtTab->{'intIndex'} = $input->{'intIndex'};
+		}
+		
+		$this->saveIHMRequest($plotInput);
+		return $plotInput;
+	}
+	
+	private function unmarshallSynchronize($input, $plotInput)
+	{
+		//Find current tab
+		$crtTab = NULL;
+		foreach ($plotInput->{'tabs'} as $tab)
+		{
+			if ($input->{'tabId'} == PLOT_RESULT_FILE_KEY."_".$tab->{'id'})
+			{
+				$crtTab = $tab;
+				break;
+			}
+		}
+		
+		if (!$crtTab)
+			throw new Exception('Cannot retrieve plot tab for synchronize action.');
+		
+		if ($crtTab->{'multi-plot-linked'})
+		{
+			
+		}
+		else
+		{
+			$plotInput->{'last-plotted-tab'} = $crtTab->{'id'};
+			$crtTab->{'ttFileIndex'} = $plotInput->{'ttFileIndex'};
+			$crtTab->{'intIndex'} = $plotInput->{'intIndex'};
+			$crtTab->{'timesrc'} = $plotInput->{'timesrc'};
+			$crtTab->{'timeTables'} = $plotInput->{'timeTables'};
+			$crtTab->{'startDate'} = $plotInput->{'startDate'};
+			$crtTab->{'stopDate'} = $plotInput->{'stopDate'};
+		}
 		
 		$this->saveIHMRequest($plotInput);
 		return $plotInput;
--
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