diff --git a/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramMultiPlot.cpp b/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramMultiPlot.cpp
index 16974b586c..497162507e 100644
--- a/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramMultiPlot.cpp
+++ b/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramMultiPlot.cpp
@@ -21,6 +21,8 @@
 #include "RiaNumericalTools.h"
 #include "RiaPlotDefines.h"
 
+#include "RicHistogramPlotTools.h"
+
 #include "RimEnsembleCurveSet.h"
 #include "RimHistogramPlot.h"
 #include "RimMainPlotCollection.h"
@@ -212,6 +214,20 @@ void RimHistogramMultiPlot::updatePlotTitles()
     if ( !m_viewer.isNull() ) m_viewer->scheduleTitleUpdate();
 }
 
+//--------------------------------------------------------------------------------------------------
+/// Create a new subplot for each dropped object, following the behavior of the summary multi plot
+//--------------------------------------------------------------------------------------------------
+void RimHistogramMultiPlot::handleDroppedObjects( const std::vector<caf::PdmObjectHandle*>& objects )
+{
+    for ( auto obj : objects )
+    {
+        if ( !RimHistogramPlot::isDroppableObject( obj ) ) continue;
+
+        auto* plot = RicHistogramPlotTools::addNewHistogramPlot( this );
+        plot->handleDroppedObjects( { obj } );
+    }
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramMultiPlot.h b/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramMultiPlot.h
index 5e7966a06f..685341a901 100644
--- a/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramMultiPlot.h
+++ b/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramMultiPlot.h
@@ -55,6 +55,8 @@ public:
     void updateAfterPlotRemove() override;
     void updatePlotTitles() override;
 
+    void handleDroppedObjects( const std::vector<caf::PdmObjectHandle*>& objects ) override;
+
     void syncAxisRanges();
 
     std::vector<RimHistogramPlot*> histogramPlots() const;
diff --git a/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramPlot.cpp b/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramPlot.cpp
index d0f0a1c43e..4ad5d4fcf1 100644
--- a/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramPlot.cpp
+++ b/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramPlot.cpp
@@ -1334,6 +1334,26 @@ RimHistogramPlot::GraphType RimHistogramPlot::graphType() const
     return m_graphType();
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+bool RimHistogramPlot::isDroppableObject( caf::PdmObjectHandle* object )
+{
+    if ( dynamic_cast<RimSummaryFileSetEnsemble*>( object ) ) return true;
+
+    if ( auto parameter = dynamic_cast<RimSummaryEnsembleParameter*>( object ) )
+    {
+        return RiaSummaryTools::ensembleById( parameter->ensembleId() ) != nullptr;
+    }
+
+    if ( auto address = dynamic_cast<RimSummaryAddress*>( object ) )
+    {
+        return address->isEnsemble() && RiaSummaryTools::ensembleById( address->ensembleId() ) != nullptr;
+    }
+
+    return false;
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
@@ -1341,6 +1361,8 @@ void RimHistogramPlot::handleDroppedObjects( const std::vector<caf::PdmObjectHan
 {
     for ( auto obj : objects )
     {
+        if ( !isDroppableObject( obj ) ) continue;
+
         if ( auto fileSet = dynamic_cast<RimSummaryFileSetEnsemble*>( obj ) )
         {
             RicHistogramPlotTools::appendEnsembleToHistogram( this, fileSet );
diff --git a/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramPlot.h b/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramPlot.h
index 637c02496c..ccd086d76b 100644
--- a/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramPlot.h
+++ b/ApplicationLibCode/ProjectDataModel/Histogram/RimHistogramPlot.h
@@ -146,6 +146,9 @@ public:
 
     std::vector<RimHistogramCurve*> histogramCurves() const;
 
+    static bool isDroppableObject( caf::PdmObjectHandle* object );
+    void        handleDroppedObjects( const std::vector<caf::PdmObjectHandle*>& objects ) override;
+
 public:
     // RimViewWindow overrides
     void deleteViewWidget() override;
@@ -177,8 +180,6 @@ protected:
     void defineUiOrdering( QString uiConfigName, caf::PdmUiOrdering& uiOrdering ) override;
     void onLoadDataAndUpdate() override;
 
-    void handleDroppedObjects( const std::vector<caf::PdmObjectHandle*>& objects ) override;
-
     void initAfterRead() override;
 
 private slots:
diff --git a/ApplicationLibCode/ProjectDataModel/RimMultiPlot.cpp b/ApplicationLibCode/ProjectDataModel/RimMultiPlot.cpp
index cf9e00872a..c8f5864d0b 100644
--- a/ApplicationLibCode/ProjectDataModel/RimMultiPlot.cpp
+++ b/ApplicationLibCode/ProjectDataModel/RimMultiPlot.cpp
@@ -245,6 +245,13 @@ void RimMultiPlot::updateAfterPlotRemove()
     onPlotAdditionOrRemoval();
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RimMultiPlot::handleDroppedObjects( const std::vector<caf::PdmObjectHandle*>& objects )
+{
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationLibCode/ProjectDataModel/RimMultiPlot.h b/ApplicationLibCode/ProjectDataModel/RimMultiPlot.h
index d8fb7aec55..d795e7f689 100644
--- a/ApplicationLibCode/ProjectDataModel/RimMultiPlot.h
+++ b/ApplicationLibCode/ProjectDataModel/RimMultiPlot.h
@@ -74,6 +74,8 @@ public:
     virtual void removePlotNoUpdate( RimPlot* plot );
     virtual void updateAfterPlotRemove();
 
+    virtual void handleDroppedObjects( const std::vector<caf::PdmObjectHandle*>& objects );
+
     void         deleteAllPlots() override;
     void         updatePlots();
     virtual void updatePlotTitles();
diff --git a/ApplicationLibCode/ProjectDataModel/Summary/RimSummaryMultiPlot.h b/ApplicationLibCode/ProjectDataModel/Summary/RimSummaryMultiPlot.h
index 003a464ef1..9ac468526a 100644
--- a/ApplicationLibCode/ProjectDataModel/Summary/RimSummaryMultiPlot.h
+++ b/ApplicationLibCode/ProjectDataModel/Summary/RimSummaryMultiPlot.h
@@ -81,7 +81,7 @@ public:
     void syncAxisRanges();
     void syncTimeAxisRanges( RimSummaryPlot* sourceSummaryPlot );
 
-    void handleDroppedObjects( const std::vector<caf::PdmObjectHandle*>& objects );
+    void handleDroppedObjects( const std::vector<caf::PdmObjectHandle*>& objects ) override;
 
     void summaryPlotItemInfos( QList<caf::PdmOptionItemInfo>* optionInfos ) const;
 
diff --git a/ApplicationLibCode/UserInterface/RiuMultiPlotBook.cpp b/ApplicationLibCode/UserInterface/RiuMultiPlotBook.cpp
index f5bb374518..804b5911ad 100644
--- a/ApplicationLibCode/UserInterface/RiuMultiPlotBook.cpp
+++ b/ApplicationLibCode/UserInterface/RiuMultiPlotBook.cpp
@@ -769,10 +769,9 @@ void RiuMultiPlotBook::dropEvent( QDropEvent* event )
 
     if ( RiuDragDrop::handleGenericDropEvent( event, objects ) )
     {
-        RimSummaryMultiPlot* multiPlot = dynamic_cast<RimSummaryMultiPlot*>( m_plotDefinition.p() );
-        if ( multiPlot )
+        if ( m_plotDefinition.notNull() )
         {
-            multiPlot->handleDroppedObjects( objects );
+            m_plotDefinition->handleDroppedObjects( objects );
         }
     }
 }