Index: Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Forms/StabilityStoneCoverCalculationConfigurationHelper.cs
===================================================================
diff -u -rca7d3c9eddcb3636472cbecdc1088af10211b51a -r861bcd1d9466ea7a592bf5fbc75595728e9dcee1
--- Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Forms/StabilityStoneCoverCalculationConfigurationHelper.cs	(.../StabilityStoneCoverCalculationConfigurationHelper.cs)	(revision ca7d3c9eddcb3636472cbecdc1088af10211b51a)
+++ Ringtoets/StabilityStoneCover/src/Ringtoets.StabilityStoneCover.Forms/StabilityStoneCoverCalculationConfigurationHelper.cs	(.../StabilityStoneCoverCalculationConfigurationHelper.cs)	(revision 861bcd1d9466ea7a592bf5fbc75595728e9dcee1)
@@ -33,7 +33,7 @@
 namespace Ringtoets.StabilityStoneCover.Forms
 {
     /// <summary>
-    /// Class holds methods to help views when dealing with <see cref="StabilityStoneCoverWaveConditionsCalculation"/>
+    /// Class that holds methods to help views when dealing with <see cref="StabilityStoneCoverWaveConditionsCalculation"/>
     /// </summary>
     public static class StabilityStoneCoverCalculationConfigurationHelper
     {
@@ -63,12 +63,9 @@
                 throw new ArgumentNullException(nameof(calculations));
             }
 
-            foreach (ICalculationBase calculation in locations.Select(location => CreateStabilityStoneCoverWaveConditionsCalculation(location,
-                                                                                                                                     calculations,
-                                                                                                                                     normType)))
-            {
-                calculations.Add(calculation);
-            }
+            calculations.AddRange(locations.Select(location => CreateStabilityStoneCoverWaveConditionsCalculation(location,
+                                                                                                                  calculations,
+                                                                                                                  normType)).ToArray());
         }
 
         /// <summary>
@@ -88,11 +85,9 @@
             NormType normType)
         {
             string nameBase = hydraulicBoundaryLocation.Name;
-            string name = NamingHelper.GetUniqueName(calculations, nameBase, c => c.Name);
-
             var calculation = new StabilityStoneCoverWaveConditionsCalculation
             {
-                Name = name,
+                Name = NamingHelper.GetUniqueName(calculations, nameBase, c => c.Name),
                 InputParameters =
                 {
                     HydraulicBoundaryLocation = hydraulicBoundaryLocation