diff --git a/ApplicationLibCode/Commands/SummaryPlotCommands/RicEditSummaryPlotFeature.cpp b/ApplicationLibCode/Commands/SummaryPlotCommands/RicEditSummaryPlotFeature.cpp
index a12729fea4..746b0b8a58 100644
--- a/ApplicationLibCode/Commands/SummaryPlotCommands/RicEditSummaryPlotFeature.cpp
+++ b/ApplicationLibCode/Commands/SummaryPlotCommands/RicEditSummaryPlotFeature.cpp
@@ -149,5 +149,13 @@ RimSummaryPlot* RicEditSummaryPlotFeature::selectedSummaryPlot()
         sumPlot = RiaSummaryTools::parentSummaryPlot( selObj );
     }
 
+    if ( !sumPlot )
+    {
+        RimSummaryMultiPlot* multiPlot = RiaSummaryTools::parentSummaryMultiPlot( selObj );
+        if ( multiPlot )
+        {
+        }
+    }
+
     return sumPlot;
 }
diff --git a/ApplicationLibCode/Commands/SummaryPlotCommands/RicOpenSummaryPlotEditorFeature.cpp b/ApplicationLibCode/Commands/SummaryPlotCommands/RicOpenSummaryPlotEditorFeature.cpp
index a1c90e6c01..5e1fd5d9d7 100644
--- a/ApplicationLibCode/Commands/SummaryPlotCommands/RicOpenSummaryPlotEditorFeature.cpp
+++ b/ApplicationLibCode/Commands/SummaryPlotCommands/RicOpenSummaryPlotEditorFeature.cpp
@@ -29,11 +29,13 @@
 #include "RimCustomObjectiveFunctionCollection.h"
 #include "RimEnsembleCurveFilter.h"
 #include "RimEnsembleCurveFilterCollection.h"
+#include "RimObservedDataCollection.h"
 #include "RimProject.h"
 #include "RimRegularLegendConfig.h"
 #include "RimSummaryCase.h"
 #include "RimSummaryCaseCollection.h"
 #include "RimSummaryCaseMainCollection.h"
+#include "RimSummaryMultiPlot.h"
 #include "RimSummaryPlot.h"
 
 #include "RiuPlotMainWindow.h"
@@ -54,20 +56,27 @@ bool RicOpenSummaryPlotEditorFeature::isCommandEnabled()
     RimCustomObjectiveFunctionCollection* customObjFuncCollection = nullptr;
 
     caf::PdmObject* selObj = dynamic_cast<caf::PdmObject*>( caf::SelectionManager::instance()->selectedItem() );
-    if ( selObj )
-    {
-        multiPlot = RiaSummaryTools::parentSummaryMultiPlot( selObj );
-        selObj->firstAncestorOrThisOfType( customObjFuncCollection );
-    }
+    if ( !selObj ) return false;
+
+    selObj->firstAncestorOrThisOfType( customObjFuncCollection );
 
     auto ensembleFilter     = dynamic_cast<RimEnsembleCurveFilter*>( selObj );
     auto ensembleFilterColl = dynamic_cast<RimEnsembleCurveFilterCollection*>( selObj );
     auto legendConfig       = dynamic_cast<RimRegularLegendConfig*>( selObj );
+    auto sumPlot            = dynamic_cast<RimSummaryPlot*>( selObj );
 
-    if ( ensembleFilter || ensembleFilterColl || legendConfig || customObjFuncCollection ) return false;
+    if ( ensembleFilter || ensembleFilterColl || legendConfig || customObjFuncCollection || sumPlot ) return false;
+
+    multiPlot = RiaSummaryTools::parentSummaryMultiPlot( selObj );
     if ( multiPlot ) return true;
 
-    return true;
+    auto summaryCase     = dynamic_cast<RimSummaryCase*>( selObj );
+    auto summaryCaseColl = dynamic_cast<RimSummaryCaseCollection*>( selObj );
+    auto obsColl         = dynamic_cast<RimObservedDataCollection*>( selObj );
+
+    if ( summaryCase || summaryCaseColl || obsColl ) return true;
+
+    return false;
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -78,6 +87,9 @@ void RicOpenSummaryPlotEditorFeature::onActionTriggered( bool isChecked )
     RimProject* project = RimProject::current();
     CVF_ASSERT( project );
 
+    RimSummaryMultiPlot* multiPlot =
+        dynamic_cast<RimSummaryMultiPlot*>( caf::SelectionManager::instance()->selectedItem() );
+
     std::vector<RimSummaryCase*>           selectedCases  = caf::selectedObjectsByType<RimSummaryCase*>();
     std::vector<RimSummaryCaseCollection*> selectedGroups = caf::selectedObjectsByType<RimSummaryCaseCollection*>();
 
@@ -126,7 +138,21 @@ void RicOpenSummaryPlotEditorFeature::onActionTriggered( bool isChecked )
         dialog->raise();
     }
 
-    dialog->updateFromDefaultCases( sourcesToSelect );
+    if ( multiPlot )
+    {
+        if ( multiPlot->summaryPlots().size() > 0 )
+        {
+            dialog->updateFromSummaryPlot( multiPlot->summaryPlots()[0] );
+        }
+        else
+        {
+            dialog->updateFromSummaryMultiPlot( multiPlot );
+        }
+    }
+    else
+    {
+        dialog->updateFromDefaultCases( sourcesToSelect );
+    }
 }
 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorDialog.cpp b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorDialog.cpp
index f25da5c11e..bfc5e39301 100644
--- a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorDialog.cpp
+++ b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorDialog.cpp
@@ -67,6 +67,15 @@ void RicSummaryPlotEditorDialog::updateFromSummaryPlot( RimSummaryPlot* summaryP
     m_curveCreatorSplitterUi->updateUi();
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RicSummaryPlotEditorDialog::updateFromSummaryMultiPlot( RimSummaryMultiPlot* summaryPlot )
+{
+    m_curveCreatorSplitterUi->updateFromSummaryMultiPlot( summaryPlot );
+    m_curveCreatorSplitterUi->updateUi();
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorDialog.h b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorDialog.h
index 58b16d2f14..762621b429 100644
--- a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorDialog.h
+++ b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorDialog.h
@@ -27,6 +27,7 @@ class PdmObject;
 
 class RicSummaryPlotEditorWidgetCreator;
 class RimSummaryPlot;
+class RimSummaryMultiPlot;
 class RimSummaryCase;
 
 //==================================================================================================
@@ -41,6 +42,7 @@ public:
     ~RicSummaryPlotEditorDialog() override;
 
     void updateFromSummaryPlot( RimSummaryPlot* summaryPlot );
+    void updateFromSummaryMultiPlot( RimSummaryMultiPlot* summaryPlot );
     void updateFromDefaultCases( const std::vector<caf::PdmObject*> defaultSources );
 
 private slots:
diff --git a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorUi.cpp b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorUi.cpp
index 2c87798f7c..5e27b7e201 100644
--- a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorUi.cpp
+++ b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorUi.cpp
@@ -165,7 +165,7 @@ void RicSummaryPlotEditorUi::updateFromSummaryPlot( RimSummaryPlot*
     if ( m_targetPlot )
     {
         RimSummaryMultiPlot* parentPlot = nullptr;
-        targetPlot->firstAncestorOfType( parentPlot );
+        m_targetPlot->firstAncestorOfType( parentPlot );
         m_plotContainer = parentPlot;
 
         populateCurveCreator( *m_targetPlot );
@@ -184,6 +184,23 @@ void RicSummaryPlotEditorUi::updateFromSummaryPlot( RimSummaryPlot*
     caf::PdmUiItem::updateConnectedEditors();
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RicSummaryPlotEditorUi::updateFromSummaryMultiPlot( RimSummaryMultiPlot*               summaryMultiPlot,
+                                                         const std::vector<SummarySource*>& defaultSources )
+{
+    resetAllFields();
+
+    m_useAutoAppearanceAssignment = true;
+
+    m_plotContainer = summaryMultiPlot;
+
+    setDefaultCurveSelection( defaultSources );
+
+    caf::PdmUiItem::updateConnectedEditors();
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorUi.h b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorUi.h
index dfa5fce41f..9da9d20554 100644
--- a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorUi.h
+++ b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorUi.h
@@ -68,6 +68,9 @@ public:
     void            updateFromSummaryPlot( RimSummaryPlot*                     targetPlot,
                                            const std::vector<caf::PdmObject*>& defaultSources = std::vector<caf::PdmObject*>() );
 
+    void updateFromSummaryMultiPlot( RimSummaryMultiPlot*                summaryMultiPlot,
+                                     const std::vector<caf::PdmObject*>& defaultSources = std::vector<caf::PdmObject*>() );
+
     QWidget* addressSelectionWidget( QWidget* parent );
 
     bool isCloseButtonPressed() const;
diff --git a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorWidgetCreator.cpp b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorWidgetCreator.cpp
index dcec80ddf3..ec008104b3 100644
--- a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorWidgetCreator.cpp
+++ b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorWidgetCreator.cpp
@@ -66,6 +66,14 @@ void RicSummaryPlotEditorWidgetCreator::updateFromSummaryPlot( RimSummaryPlot* s
     m_summaryCurveCreator->updateFromSummaryPlot( summaryPlot );
 }
 
+//--------------------------------------------------------------------------------------------------
+///
+//--------------------------------------------------------------------------------------------------
+void RicSummaryPlotEditorWidgetCreator::updateFromSummaryMultiPlot( RimSummaryMultiPlot* summaryMultiPlot )
+{
+    m_summaryCurveCreator->updateFromSummaryMultiPlot( summaryMultiPlot );
+}
+
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorWidgetCreator.h b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorWidgetCreator.h
index 4fded48874..ee0932823e 100644
--- a/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorWidgetCreator.h
+++ b/ApplicationLibCode/Commands/SummaryPlotCommands/RicSummaryPlotEditorWidgetCreator.h
@@ -24,6 +24,7 @@
 #include <vector>
 
 class RimSummaryPlot;
+class RimSummaryMultiPlot;
 class RimSummaryCase;
 class RicSummaryPlotEditorUi;
 
@@ -54,6 +55,7 @@ public:
     ~RicSummaryPlotEditorWidgetCreator() override;
 
     void updateFromSummaryPlot( RimSummaryPlot* summaryPlot );
+    void updateFromSummaryMultiPlot( RimSummaryMultiPlot* summaryMultiPlot );
     void updateFromDefaultSources( const std::vector<caf::PdmObject*> defaultSources );
 
 private:
diff --git a/ApplicationLibCode/ProjectDataModel/RimContextCommandBuilder.cpp b/ApplicationLibCode/ProjectDataModel/RimContextCommandBuilder.cpp
index 10ccb5ce4a..5b1af4e6c3 100644
--- a/ApplicationLibCode/ProjectDataModel/RimContextCommandBuilder.cpp
+++ b/ApplicationLibCode/ProjectDataModel/RimContextCommandBuilder.cpp
@@ -1121,6 +1121,7 @@ caf::CmdFeatureMenuBuilder RimContextCommandBuilder::commandsFromSelection()
         menuBuilder << "RicShowTotalAllocationDataFeature";
 
         menuBuilder << "RicNewSummaryMultiPlotFeature";
+        menuBuilder << "RicOpenSummaryPlotEditorFeature";
         menuBuilder << "RicNewDerivedEnsembleFeature";
         menuBuilder << "RicNewSummaryCrossPlotFeature";
         menuBuilder << "RicSummaryCurveSwitchAxisFeature";