diff --git a/ApplicationLibCode/Application/RiaPreferencesSummary.cpp b/ApplicationLibCode/Application/RiaPreferencesSummary.cpp
index d519de7490..fdd777ead5 100644
--- a/ApplicationLibCode/Application/RiaPreferencesSummary.cpp
+++ b/ApplicationLibCode/Application/RiaPreferencesSummary.cpp
@@ -28,6 +28,7 @@
 
 #include "cafPdmUiCheckBoxEditor.h"
 #include "cafPdmUiComboBoxEditor.h"
+#include "cafPdmUiFilePathEditor.h"
 #include "cafPdmUiListEditor.h"
 #include "cafPdmUiPushButtonEditor.h"
 
@@ -202,7 +203,11 @@ RiaPreferencesSummary::RiaPreferencesSummary()
                        RiaColorTables::historyCurveContrastColor(),
                        "History Curve Color" );
 
-    CAF_PDM_InitFieldNoDefault( &m_ensembleCurveSetTemplateFilePath, "ensembleCurveSetTemplateFilePath", "Curve Set Template" );
+    CAF_PDM_InitFieldNoDefault( &m_ensembleCurveTemplateFilePath,
+                                "ensembleCurveTemplateFilePath",
+                                "Ensemble Curve Template",
+                                "",
+                                "Select a template for ensemble curve properties." );
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -302,7 +307,7 @@ void RiaPreferencesSummary::appendItemsToPlottingGroup( caf::PdmUiOrdering& uiOr
     }
 
     uiOrdering.add( &m_crossPlotAddressCombinations );
-    uiOrdering.add( &m_ensembleCurveSetTemplateFilePath );
+    uiOrdering.add( &m_ensembleCurveTemplateFilePath );
 
     auto historyCurveGroup = uiOrdering.addNewGroup( "History Vectors" );
 
@@ -476,6 +481,13 @@ void RiaPreferencesSummary::defineEditorAttribute( const caf::PdmFieldHandle* fi
             attrib->heightHint = 30;
         }
     }
+    else if ( field == &m_ensembleCurveTemplateFilePath )
+    {
+        if ( auto myAttr = dynamic_cast<caf::PdmUiFilePathEditorAttribute*>( attribute ) )
+        {
+            myAttr->m_fileSelectionFilter = "Templates (*.erpt);;All files (*.*)";
+        }
+    }
 }
 
 //--------------------------------------------------------------------------------------------------
@@ -571,9 +583,9 @@ cvf::Color3f RiaPreferencesSummary::historyCurveContrastColor() const
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-QString RiaPreferencesSummary::ensembleCurveSetTemplateFilePath() const
+QString RiaPreferencesSummary::ensembleCurveTemplateFilePath() const
 {
-    return m_ensembleCurveSetTemplateFilePath().path().trimmed();
+    return m_ensembleCurveTemplateFilePath().path().trimmed();
 }
 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationLibCode/Application/RiaPreferencesSummary.h b/ApplicationLibCode/Application/RiaPreferencesSummary.h
index 7a9a4967f1..314735b2c2 100644
--- a/ApplicationLibCode/Application/RiaPreferencesSummary.h
+++ b/ApplicationLibCode/Application/RiaPreferencesSummary.h
@@ -117,7 +117,7 @@ public:
 
     cvf::Color3f historyCurveContrastColor() const;
 
-    QString ensembleCurveSetTemplateFilePath() const;
+    QString ensembleCurveTemplateFilePath() const;
 
     void defineEditorAttribute( const caf::PdmFieldHandle* field, QString uiConfigName, caf::PdmUiEditorAttribute* attribute ) override;
     void fieldChangedByUi( const caf::PdmFieldHandle* changedField, const QVariant& oldValue, const QVariant& newValue ) override;
@@ -142,7 +142,7 @@ private:
     caf::PdmField<bool>                             m_curveColorByPhase;
     caf::PdmField<bool>                             m_appendHistoryVectors;
 
-    caf::PdmField<caf::FilePath> m_ensembleCurveSetTemplateFilePath;
+    caf::PdmField<caf::FilePath> m_ensembleCurveTemplateFilePath;
 
     caf::PdmField<bool> m_showSummaryTimeAsLongString;
     caf::PdmField<bool> m_useMultipleThreadsWhenLoadingSummaryCases;
diff --git a/ApplicationLibCode/Application/Tools/Ensemble/RiaEnsembleImportTools.cpp b/ApplicationLibCode/Application/Tools/Ensemble/RiaEnsembleImportTools.cpp
index fa0afe70fc..dcbf21e255 100644
--- a/ApplicationLibCode/Application/Tools/Ensemble/RiaEnsembleImportTools.cpp
+++ b/ApplicationLibCode/Application/Tools/Ensemble/RiaEnsembleImportTools.cpp
@@ -267,13 +267,12 @@ QStringList getMatchingFiles( const QString& basePath, const QString& regexPatte
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-RimEnsembleCurveSet* createEnsembleCurveSet( const QString& templateFilePath )
+std::expected<RimEnsembleCurveSet*, QString> createEnsembleCurveSet( const QString& templateFilePath )
 {
     QFile importFile( templateFilePath );
     if ( !importFile.open( QIODevice::ReadOnly | QIODevice::Text ) )
     {
-        RiaLogging::error( QString( "Create Plot from Template : Could not open the file: %1" ).arg( templateFilePath ) );
-        return nullptr;
+        return std::unexpected( QString( "Create Plot from Template : Could not open the file: %1" ).arg( templateFilePath ) );
     }
 
     QTextStream stream( &importFile );
@@ -305,7 +304,7 @@ RimEnsembleCurveSet* createEnsembleCurveSet( const QString& templateFilePath )
         }
     }
 
-    return nullptr;
+    return std::unexpected( QString( "Create Plot from Template : No ensemble curve sets found in : %1" ).arg( templateFilePath ) );
 }
 
 //--------------------------------------------------------------------------------------------------
diff --git a/ApplicationLibCode/Application/Tools/Ensemble/RiaEnsembleImportTools.h b/ApplicationLibCode/Application/Tools/Ensemble/RiaEnsembleImportTools.h
index 25a990d224..a808c66749 100644
--- a/ApplicationLibCode/Application/Tools/Ensemble/RiaEnsembleImportTools.h
+++ b/ApplicationLibCode/Application/Tools/Ensemble/RiaEnsembleImportTools.h
@@ -22,6 +22,8 @@
 
 #include <QStringList>
 
+#include <expected>
+
 class RimSummaryCase;
 class RimEnsembleCurveSet;
 
@@ -45,6 +47,6 @@ QStringList createPathsBySearchingFileSystem_obsolete( const QString& pathPatter
 QStringList createPathsBySearchingFileSystem( const QString& pathPattern, const QString& extension, const QString& placeholderString );
 QStringList getMatchingFiles( const QString& basePath, const QString& regexPattern );
 
-RimEnsembleCurveSet* createEnsembleCurveSet( const QString& templateFilePath );
+std::expected<RimEnsembleCurveSet*, QString> createEnsembleCurveSet( const QString& templateFilePath );
 
 } // namespace RiaEnsembleImportTools
diff --git a/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleCurveSet.cpp b/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleCurveSet.cpp
index ec8320b4fd..832922dcbd 100644
--- a/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleCurveSet.cpp
+++ b/ApplicationLibCode/ProjectDataModel/Summary/RimEnsembleCurveSet.cpp
@@ -22,6 +22,7 @@
 #include "RiaColorTools.h"
 #include "RiaGuiApplication.h"
 #include "RiaHashTools.h"
+#include "RiaLogging.h"
 #include "RiaPreferences.h"
 #include "RiaPreferencesSummary.h"
 #include "RiaQDateTimeTools.h"
@@ -301,12 +302,17 @@ RimEnsembleCurveSet::~RimEnsembleCurveSet()
 //--------------------------------------------------------------------------------------------------
 RimEnsembleCurveSet* RimEnsembleCurveSet::createObject()
 {
-    auto filePath = RiaPreferencesSummary::current()->ensembleCurveSetTemplateFilePath();
+    auto filePath = RiaPreferencesSummary::current()->ensembleCurveTemplateFilePath();
     if ( !filePath.isEmpty() )
     {
         if ( auto obj = RiaEnsembleImportTools::createEnsembleCurveSet( filePath ) )
         {
-            return obj;
+            return obj.value();
+        }
+        else
+        {
+            auto txt = obj.error() + " Default ensemble curve properties are used";
+            RiaLogging::warning( txt );
         }
     }