Index: Riskeer/Integration/src/Riskeer.Integration.Plugin/Helpers/HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.cs
===================================================================
diff -u
--- Riskeer/Integration/src/Riskeer.Integration.Plugin/Helpers/HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.cs	(revision 0)
+++ Riskeer/Integration/src/Riskeer.Integration.Plugin/Helpers/HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.cs	(revision 84c0244a6582e88b4c5af4e41dc8715655ae3aad)
@@ -0,0 +1,58 @@
+// Copyright (C) Stichting Deltares 2022. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using System.Linq;
+using Riskeer.Common.Data.AssessmentSection;
+using Riskeer.Common.Data.Hydraulics;
+
+namespace Riskeer.Integration.Plugin.Helpers
+{
+    /// <summary>
+    /// Helper class for <see cref="HydraulicBoundaryLocationCalculationsForTargetProbability"/>.
+    /// </summary>
+    public static class HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper
+    {
+        /// <summary>
+        /// Creates a new <see cref="HydraulicBoundaryLocationCalculationsForTargetProbability"/>
+        /// and sets the calculations for all locations of the <paramref name="assessmentSection"/>.
+        /// </summary>
+        /// <param name="assessmentSection">The <see cref="IAssessmentSection"/> to get the locations from.</param>
+        /// <param name="probability">The probability of the calculations to add.</param>
+        /// <returns>The created <see cref="HydraulicBoundaryLocationCalculationsForTargetProbability"/>.</returns>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="assessmentSection"/>
+        /// is <c>null</c>.</exception>
+        public static HydraulicBoundaryLocationCalculationsForTargetProbability Create(IAssessmentSection assessmentSection, double probability = 0.01)
+        {
+            if (assessmentSection == null)
+            {
+                throw new ArgumentNullException(nameof(assessmentSection));
+            }
+
+            var calculationsForTargetProbability = new HydraulicBoundaryLocationCalculationsForTargetProbability(probability);
+
+            calculationsForTargetProbability.HydraulicBoundaryLocationCalculations.AddRange(
+                assessmentSection.HydraulicBoundaryData.GetLocations().Select(hbl => new HydraulicBoundaryLocationCalculation(hbl)));
+
+            return calculationsForTargetProbability;
+        }
+    }
+}
\ No newline at end of file
Index: Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs
===================================================================
diff -u -reddb7614c96ab6430d57eda0244258f1f95b2cf4 -r84c0244a6582e88b4c5af4e41dc8715655ae3aad
--- Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision eddb7614c96ab6430d57eda0244258f1f95b2cf4)
+++ Riskeer/Integration/src/Riskeer.Integration.Plugin/RiskeerPlugin.cs	(.../RiskeerPlugin.cs)	(revision 84c0244a6582e88b4c5af4e41dc8715655ae3aad)
@@ -83,6 +83,7 @@
 using Riskeer.Integration.IO.Importers;
 using Riskeer.Integration.Plugin.FileImporters;
 using Riskeer.Integration.Plugin.Handlers;
+using Riskeer.Integration.Plugin.Helpers;
 using Riskeer.Integration.Plugin.Merge;
 using Riskeer.Integration.Plugin.Properties;
 using Riskeer.Integration.Service;
@@ -2598,9 +2599,7 @@
                 RiskeerCommonFormsResources.GenericInputOutputIcon,
                 (sender, args) =>
                 {
-                    HydraulicBoundaryLocationCalculationsForTargetProbability hydraulicBoundaryLocationCalculationsForTargetProbability = CreateHydraulicBoundaryLocationCalculationsForTargetProbability(assessmentSection);
-
-                    nodeData.WrappedData.Add(hydraulicBoundaryLocationCalculationsForTargetProbability);
+                    nodeData.WrappedData.Add(HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.Create(assessmentSection));
                     nodeData.WrappedData.NotifyObservers();
                 });
 
@@ -2723,9 +2722,7 @@
                 RiskeerCommonFormsResources.GenericInputOutputIcon,
                 (sender, args) =>
                 {
-                    HydraulicBoundaryLocationCalculationsForTargetProbability hydraulicBoundaryLocationCalculationsForTargetProbability = CreateHydraulicBoundaryLocationCalculationsForTargetProbability(assessmentSection);
-
-                    nodeData.WrappedData.Add(hydraulicBoundaryLocationCalculationsForTargetProbability);
+                    nodeData.WrappedData.Add(HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.Create(assessmentSection));
                     nodeData.WrappedData.NotifyObservers();
                 });
 
@@ -2801,16 +2798,6 @@
                                     .Any(whc => IllustrationPointsHelper.HasIllustrationPoints(whc.HydraulicBoundaryLocationCalculations));
         }
 
-        private static HydraulicBoundaryLocationCalculationsForTargetProbability CreateHydraulicBoundaryLocationCalculationsForTargetProbability(IAssessmentSection assessmentSection)
-        {
-            var calculationsForTargetProbability = new HydraulicBoundaryLocationCalculationsForTargetProbability(0.01);
-
-            calculationsForTargetProbability.HydraulicBoundaryLocationCalculations.AddRange(
-                assessmentSection.HydraulicBoundaryData.GetLocations().Select(hbl => new HydraulicBoundaryLocationCalculation(hbl)));
-
-            return calculationsForTargetProbability;
-        }
-
         #endregion
 
         #region AssemblyResults TreeNodeInfo
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/Helpers/HydraulicBoundaryLocationCalculationsForTargetProbabilityHelperTest.cs
===================================================================
diff -u
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/Helpers/HydraulicBoundaryLocationCalculationsForTargetProbabilityHelperTest.cs	(revision 0)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/Helpers/HydraulicBoundaryLocationCalculationsForTargetProbabilityHelperTest.cs	(revision 84c0244a6582e88b4c5af4e41dc8715655ae3aad)
@@ -0,0 +1,97 @@
+// Copyright (C) Stichting Deltares 2022. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using System.Linq;
+using NUnit.Framework;
+using Riskeer.Common.Data.Hydraulics;
+using Riskeer.Common.Data.TestUtil;
+using Riskeer.Integration.Plugin.Helpers;
+
+namespace Riskeer.Integration.Plugin.Test.Helpers
+{
+    [TestFixture]
+    public class HydraulicBoundaryLocationCalculationsForTargetProbabilityHelperTest
+    {
+        [Test]
+        public void Create_AssessmentSectionNull_ThrowsArgumentNullException()
+        {
+            // Call
+            void Call() => HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.Create(null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(Call);
+            Assert.AreEqual("assessmentSection", exception.ParamName);
+        }
+
+        [Test]
+        public void Create_WithoutProbability_ReturnsHydraulicBoundaryLocationCalculationsForTargetProbability()
+        {
+            // Setup
+            var assessmentSection = new AssessmentSectionStub();
+            assessmentSection.HydraulicBoundaryData.HydraulicBoundaryDatabases.Add(new HydraulicBoundaryDatabase
+            {
+                Locations =
+                {
+                    new TestHydraulicBoundaryLocation(),
+                    new TestHydraulicBoundaryLocation()
+                }
+            });
+
+            // Call
+            HydraulicBoundaryLocationCalculationsForTargetProbability hydraulicBoundaryLocationCalculationsForTargetProbability =
+                HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.Create(assessmentSection);
+
+            // Assert
+            Assert.AreEqual(0.01, hydraulicBoundaryLocationCalculationsForTargetProbability.TargetProbability);
+            CollectionAssert.AreEqual(assessmentSection.HydraulicBoundaryData.GetLocations(),
+                                      hydraulicBoundaryLocationCalculationsForTargetProbability.HydraulicBoundaryLocationCalculations
+                                                                                               .Select(c => c.HydraulicBoundaryLocation));
+        }
+
+        [Test]
+        public void Create_WitProbability_ReturnsHydraulicBoundaryLocationCalculationsForTargetProbability()
+        {
+            // Setup
+            var assessmentSection = new AssessmentSectionStub();
+            assessmentSection.HydraulicBoundaryData.HydraulicBoundaryDatabases.Add(new HydraulicBoundaryDatabase
+            {
+                Locations =
+                {
+                    new TestHydraulicBoundaryLocation(),
+                    new TestHydraulicBoundaryLocation()
+                }
+            });
+
+            const double probability = 0.01234;
+
+            // Call
+            HydraulicBoundaryLocationCalculationsForTargetProbability hydraulicBoundaryLocationCalculationsForTargetProbability =
+                HydraulicBoundaryLocationCalculationsForTargetProbabilityHelper.Create(assessmentSection, probability);
+
+            // Assert
+            Assert.AreEqual(probability, hydraulicBoundaryLocationCalculationsForTargetProbability.TargetProbability);
+            CollectionAssert.AreEqual(assessmentSection.HydraulicBoundaryData.GetLocations(),
+                                      hydraulicBoundaryLocationCalculationsForTargetProbability.HydraulicBoundaryLocationCalculations
+                                                                                               .Select(c => c.HydraulicBoundaryLocation));
+        }
+    }
+}
\ No newline at end of file