Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Plugin/GrassCoverErosionOutwardsPlugin.cs
===================================================================
diff -u -r8a90c409545ce1b48e018d3b5d6b5982dbef926f -r63b14648b4633ab7f052e91570ebb24c6aabb82b
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Plugin/GrassCoverErosionOutwardsPlugin.cs	(.../GrassCoverErosionOutwardsPlugin.cs)	(revision 8a90c409545ce1b48e018d3b5d6b5982dbef926f)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Plugin/GrassCoverErosionOutwardsPlugin.cs	(.../GrassCoverErosionOutwardsPlugin.cs)	(revision 63b14648b4633ab7f052e91570ebb24c6aabb82b)
@@ -97,6 +97,11 @@
                 FailureMechanismEnabledContextMenuStrip,
                 FailureMechanismDisabledContextMenuStrip);
 
+            yield return RingtoetsTreeNodeInfoFactory.CreateCalculationGroupContextTreeNodeInfo<GrassCoverErosionOutwardsWaveConditionsCalculationGroupContext>(
+                null,
+                null,
+                null);
+
             yield return new TreeNodeInfo<FailureMechanismSectionResultContext<GrassCoverErosionOutwardsFailureMechanismSectionResult>>
             {
                 Text = context => RingtoetsCommonFormsResources.FailureMechanism_AssessmentResult_DisplayName,
@@ -267,7 +272,9 @@
             return new object[]
             {
                 new GrassCoverErosionOutwardsDesignWaterLevelLocationsContext(locations, assessmentSection),
-                new GrassCoverErosionOutwardsWaveHeightLocationsContext(locations, assessmentSection)
+                new GrassCoverErosionOutwardsWaveHeightLocationsContext(locations, assessmentSection),
+                new GrassCoverErosionOutwardsWaveConditionsCalculationGroupContext(hydraulicBoundariesGroupContext.WrappedData.WaveConditionsCalculationGroup,
+                                                                                   hydraulicBoundariesGroupContext.WrappedData)
             };
         }
 
Index: Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Forms.Test/Ringtoets.GrassCoverErosionOutwards.Forms.Test.csproj
===================================================================
diff -u -r5387346fe4a7aa93e72d71f86c1e4d0a22a73f91 -r63b14648b4633ab7f052e91570ebb24c6aabb82b
--- Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Forms.Test/Ringtoets.GrassCoverErosionOutwards.Forms.Test.csproj	(.../Ringtoets.GrassCoverErosionOutwards.Forms.Test.csproj)	(revision 5387346fe4a7aa93e72d71f86c1e4d0a22a73f91)
+++ Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Forms.Test/Ringtoets.GrassCoverErosionOutwards.Forms.Test.csproj	(.../Ringtoets.GrassCoverErosionOutwards.Forms.Test.csproj)	(revision 63b14648b4633ab7f052e91570ebb24c6aabb82b)
@@ -81,6 +81,7 @@
     <Compile Include="PropertyInfos\GrassCoverErosionOutwardsDesignWaterLevelLocationsContextPropertyInfoTest.cs" />
     <Compile Include="PropertyInfos\GrassCoverErosionOutwardsFailureMechanismContextPropertyInfoTest.cs" />
     <Compile Include="PropertyInfos\GrassCoverErosionOutwardsWaveHeightLocationsContextPropertyInfoTest.cs" />
+    <Compile Include="TreeNodeInfos\GrassCoverErosionOutwardsWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs" />
     <Compile Include="TreeNodeInfos\GrassCoverErosionOutwardsWaveHeightLocationsContextTreeNodeInfoTest.cs" />
     <Compile Include="TreeNodeInfos\GrassCoverErosionOutwardsFailureMechanismContextTreeNodeInfoTest.cs" />
     <Compile Include="TreeNodeInfos\GrassCoverErosionOutwardsFailureMechanismSectionResultContextTreeNodeInfoTest.cs" />
Index: Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Forms.Test/TreeNodeInfos/HydraulicBoundariesGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r8a90c409545ce1b48e018d3b5d6b5982dbef926f -r63b14648b4633ab7f052e91570ebb24c6aabb82b
--- Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Forms.Test/TreeNodeInfos/HydraulicBoundariesGroupContextTreeNodeInfoTest.cs	(.../HydraulicBoundariesGroupContextTreeNodeInfoTest.cs)	(revision 8a90c409545ce1b48e018d3b5d6b5982dbef926f)
+++ Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Forms.Test/TreeNodeInfos/HydraulicBoundariesGroupContextTreeNodeInfoTest.cs	(.../HydraulicBoundariesGroupContextTreeNodeInfoTest.cs)	(revision 63b14648b4633ab7f052e91570ebb24c6aabb82b)
@@ -157,14 +157,17 @@
             object[] children = info.ChildNodeObjects(context).ToArray();
 
             // Assert
-            Assert.AreEqual(2, children.Length);
+            Assert.AreEqual(3, children.Length);
             var waterLevelHydraulicBoundaryLocationsContext = (GrassCoverErosionOutwardsDesignWaterLevelLocationsContext) children[0];
             Assert.AreSame(failureMechanism.HydraulicBoundaryLocations, waterLevelHydraulicBoundaryLocationsContext.WrappedData);
             Assert.AreSame(assessmentSectionMock, waterLevelHydraulicBoundaryLocationsContext.AssessmentSection);
 
             var waveHeightHydraulicBoundaryLocationsContext = (GrassCoverErosionOutwardsWaveHeightLocationsContext)children[1];
             Assert.AreSame(failureMechanism.HydraulicBoundaryLocations, waveHeightHydraulicBoundaryLocationsContext.WrappedData);
             Assert.AreSame(assessmentSectionMock, waveHeightHydraulicBoundaryLocationsContext.AssessmentSection);
+
+            var waveConditionsCalculationGroupContext = (GrassCoverErosionOutwardsWaveConditionsCalculationGroupContext) children[2];
+            Assert.AreSame(failureMechanism.WaveConditionsCalculationGroup, waveConditionsCalculationGroupContext.WrappedData);
         }
     }
 }
\ No newline at end of file
Index: Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Plugin.Test/GrassCoverErosionOutwardsPluginTest.cs
===================================================================
diff -u -rbc837eb44a4ee266d94e49f117b1f1f078ee94fd -r63b14648b4633ab7f052e91570ebb24c6aabb82b
--- Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Plugin.Test/GrassCoverErosionOutwardsPluginTest.cs	(.../GrassCoverErosionOutwardsPluginTest.cs)	(revision bc837eb44a4ee266d94e49f117b1f1f078ee94fd)
+++ Ringtoets/GrassCoverErosionOutwards/test/Ringtoets.GrassCoverErosionOutwards.Plugin.Test/GrassCoverErosionOutwardsPluginTest.cs	(.../GrassCoverErosionOutwardsPluginTest.cs)	(revision 63b14648b4633ab7f052e91570ebb24c6aabb82b)
@@ -79,12 +79,13 @@
                 TreeNodeInfo[] treeNodeInfos = plugin.GetTreeNodeInfos().ToArray();
 
                 // Assert
-                Assert.AreEqual(5, treeNodeInfos.Length);
+                Assert.AreEqual(6, treeNodeInfos.Length);
                 Assert.IsTrue(treeNodeInfos.Any(tni => tni.TagType == typeof(GrassCoverErosionOutwardsFailureMechanismContext)));
                 Assert.IsTrue(treeNodeInfos.Any(tni => tni.TagType == typeof(FailureMechanismSectionResultContext<GrassCoverErosionOutwardsFailureMechanismSectionResult>)));
                 Assert.IsTrue(treeNodeInfos.Any(tni => tni.TagType == typeof(HydraulicBoundariesGroupContext)));
                 Assert.IsTrue(treeNodeInfos.Any(tni => tni.TagType == typeof(GrassCoverErosionOutwardsDesignWaterLevelLocationsContext)));
                 Assert.IsTrue(treeNodeInfos.Any(tni => tni.TagType == typeof(GrassCoverErosionOutwardsWaveHeightLocationsContext)));
+                Assert.IsTrue(treeNodeInfos.Any(tni => tni.TagType == typeof(GrassCoverErosionOutwardsWaveConditionsCalculationGroupContext)));
             }
         }