Index: Core/Gui/src/Core.Gui/Forms/Backstage/BackstageViewModel.cs
===================================================================
diff -u -r5d59491a99d3e9ae9d65b24a8774d1db96e57f4f -r2ccd820a20c579a55a3752d370c30781624e6dee
--- Core/Gui/src/Core.Gui/Forms/Backstage/BackstageViewModel.cs	(.../BackstageViewModel.cs)	(revision 5d59491a99d3e9ae9d65b24a8774d1db96e57f4f)
+++ Core/Gui/src/Core.Gui/Forms/Backstage/BackstageViewModel.cs	(.../BackstageViewModel.cs)	(revision 2ccd820a20c579a55a3752d370c30781624e6dee)
@@ -22,6 +22,7 @@
 using System;
 using System.ComponentModel;
 using System.Diagnostics;
+using System.IO;
 using System.Runtime.CompilerServices;
 using System.Windows.Input;
 using Core.Gui.Commands;
@@ -65,6 +66,7 @@
             OpenHelpdeskWaterWebsiteCommand = new RelayCommand(OnOpenHelpdeskWaterWebsite);
             EmailHelpdeskWaterSupportCommand = new RelayCommand(OnEmailHelpdeskWaterSupport);
             CallHelpdeskWaterSupportCommand = new RelayCommand(OnCallHelpdeskWaterSupport);
+            OpenUserManualCommand = new RelayCommand(OnOpenUserManual, CanOpenUserManual);
             SetSelectedViewModelCommand = new RelayCommand(OnSetCurrentViewModel);
 
             SelectedViewModel = InfoViewModel;
@@ -86,6 +88,11 @@
         public ICommand CallHelpdeskWaterSupportCommand { get; }
 
         /// <summary>
+        /// Gets the command to open the user manual.
+        /// </summary>
+        public ICommand OpenUserManualCommand { get; }
+
+        /// <summary>
         /// Gets the command to set the selected view model.
         /// </summary>
         public ICommand SetSelectedViewModelCommand { get; }
@@ -194,6 +201,16 @@
             Process.Start(settings.SupportPhoneNumberUrl);
         }
 
+        private bool CanOpenUserManual(object obj)
+        {
+            return File.Exists(settings.ManualFilePath);
+        }
+
+        private void OnOpenUserManual(object obj)
+        {
+            Process.Start(settings.ManualFilePath);
+        }
+
         private void OnSetCurrentViewModel(object obj)
         {
             SelectedViewModel = (IBackstagePageViewModel) obj;
Index: Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml
===================================================================
diff -u -r5d59491a99d3e9ae9d65b24a8774d1db96e57f4f -r2ccd820a20c579a55a3752d370c30781624e6dee
--- Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml	(.../MainWindow.xaml)	(revision 5d59491a99d3e9ae9d65b24a8774d1db96e57f4f)
+++ Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml	(.../MainWindow.xaml)	(revision 2ccd820a20c579a55a3752d370c30781624e6dee)
@@ -54,7 +54,7 @@
         <commands:RoutedCommandHandler RoutedCommand="{x:Static commands:MainWindowCommands.OpenLogFileCommand}"
                                        Command="{Binding Path=OpenLogFileCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=metro:MetroWindow}}" />
         <commands:RoutedCommandHandler RoutedCommand="{x:Static commands:MainWindowCommands.OpenUserManualCommand}"
-                                       Command="{Binding Path=OpenUserManualCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=metro:MetroWindow}}" />
+                                       Command="{Binding Path=BackstageViewModel.OpenUserManualCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=metro:MetroWindow}}" />
         <commands:RoutedCommandHandler RoutedCommand="{x:Static commands:MainWindowCommands.OpenHelpdeskWaterWebsiteCommand}"
                                        Command="{Binding Path=BackstageViewModel.OpenHelpdeskWaterWebsiteCommand, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=metro:MetroWindow}}" />
         <commands:RoutedCommandHandler RoutedCommand="{x:Static commands:MainWindowCommands.CallHelpdeskWaterWebsiteCommand}"
Index: Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml.cs
===================================================================
diff -u -r5d59491a99d3e9ae9d65b24a8774d1db96e57f4f -r2ccd820a20c579a55a3752d370c30781624e6dee
--- Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml.cs	(.../MainWindow.xaml.cs)	(revision 5d59491a99d3e9ae9d65b24a8774d1db96e57f4f)
+++ Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml.cs	(.../MainWindow.xaml.cs)	(revision 2ccd820a20c579a55a3752d370c30781624e6dee)
@@ -22,8 +22,6 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
-using System.Diagnostics;
-using System.IO;
 using System.Linq;
 using System.Windows;
 using System.Windows.Controls;
@@ -95,7 +93,6 @@
             TogglePropertyGridViewCommand = new RelayCommand(OnTogglePropertyGridView);
             ToggleMessageWindowCommand = new RelayCommand(OnToggleMessageWindow);
             OpenLogFileCommand = new RelayCommand(OnOpenLogFile);
-            OpenUserManualCommand = new RelayCommand(OnOpenUserManual, CanOpenUserManual);
         }
 
         /// <summary>
@@ -440,11 +437,6 @@
         /// </summary>
         public ICommand OpenLogFileCommand { get; }
 
-        /// <summary>
-        /// Gets the command to open the user manual.
-        /// </summary>
-        public ICommand OpenUserManualCommand { get; }
-
         private void OnNewProject(object obj)
         {
             commands.StorageCommands.CreateNewProject();
@@ -545,16 +537,6 @@
             commands.ApplicationCommands.OpenLogFileExternal();
         }
 
-        private bool CanOpenUserManual(object obj)
-        {
-            return File.Exists(settings?.FixedSettings.ManualFilePath);
-        }
-
-        private void OnOpenUserManual(object obj)
-        {
-            Process.Start(settings.FixedSettings.ManualFilePath);
-        }
-
         #endregion
 
         #region ToolWindows
Index: Core/Gui/test/Core.Gui.Test/Forms/Backstage/BackstageViewModelTest.cs
===================================================================
diff -u -r5d59491a99d3e9ae9d65b24a8774d1db96e57f4f -r2ccd820a20c579a55a3752d370c30781624e6dee
--- Core/Gui/test/Core.Gui.Test/Forms/Backstage/BackstageViewModelTest.cs	(.../BackstageViewModelTest.cs)	(revision 5d59491a99d3e9ae9d65b24a8774d1db96e57f4f)
+++ Core/Gui/test/Core.Gui.Test/Forms/Backstage/BackstageViewModelTest.cs	(.../BackstageViewModelTest.cs)	(revision 2ccd820a20c579a55a3752d370c30781624e6dee)
@@ -22,9 +22,14 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
+using System.Reflection;
+using Core.Common.Base.Data;
+using Core.Common.Base.Storage;
 using Core.Gui.Forms.Backstage;
 using Core.Gui.Settings;
+using Core.Gui.TestUtil;
 using NUnit.Framework;
+using Rhino.Mocks;
 
 namespace Core.Gui.Test.Forms.Backstage
 {
@@ -69,6 +74,7 @@
             Assert.IsNotNull(viewModel.OpenHelpdeskWaterWebsiteCommand);
             Assert.IsNotNull(viewModel.CallHelpdeskWaterSupportCommand);
             Assert.IsNotNull(viewModel.EmailHelpdeskWaterSupportCommand);
+            Assert.IsNotNull(viewModel.OpenUserManualCommand);
             Assert.IsNotNull(viewModel.SetSelectedViewModelCommand);
 
             Assert.AreSame(viewModel.InfoViewModel, viewModel.SelectedViewModel);
@@ -130,6 +136,29 @@
             Assert.AreEqual(openSelected, viewModel.SupportSelected);
         }
 
+        [Test]
+        [TestCase(true)]
+        [TestCase(false)]
+        public void GivenViewModelWithSettingsWithOrWithoutUserManualPathSet_WhenCanExecuteOpenUserManualCommand_ThenExpectedValue(
+            bool userManualPresent)
+        {
+            // Given
+            string path = Uri.UnescapeDataString(new UriBuilder(Assembly.GetExecutingAssembly().CodeBase).Path);
+
+            var settings = new GuiCoreSettings
+            {
+                ManualFilePath = userManualPresent ? path : null
+            };
+
+            var viewModel = new BackstageViewModel(settings, "1.0");
+
+            // When
+            bool canExecute = viewModel.OpenUserManualCommand.CanExecute(null);
+
+            // Then
+            Assert.AreEqual(userManualPresent, canExecute);
+        }
+
         private static IEnumerable<TestCaseData> GetBackstagePageViewModels()
         {
             yield return new TestCaseData(new Func<BackstageViewModel, IBackstagePageViewModel>(
Index: Core/Gui/test/Core.Gui.Test/Forms/MainWindow/MainWindowTest.cs
===================================================================
diff -u -r6f2f24378f372a8b22b5e5fa2b6987a804e3f7f6 -r2ccd820a20c579a55a3752d370c30781624e6dee
--- Core/Gui/test/Core.Gui.Test/Forms/MainWindow/MainWindowTest.cs	(.../MainWindowTest.cs)	(revision 6f2f24378f372a8b22b5e5fa2b6987a804e3f7f6)
+++ Core/Gui/test/Core.Gui.Test/Forms/MainWindow/MainWindowTest.cs	(.../MainWindowTest.cs)	(revision 2ccd820a20c579a55a3752d370c30781624e6dee)
@@ -116,7 +116,6 @@
                 Assert.IsNotNull(mainWindow.TogglePropertyGridViewCommand);
                 Assert.IsNotNull(mainWindow.ToggleMessageWindowCommand);
                 Assert.IsNotNull(mainWindow.OpenLogFileCommand);
-                Assert.IsNotNull(mainWindow.OpenUserManualCommand);
 
                 Assert.IsNull(mainWindow.BackstageViewModel);
             }
@@ -1207,46 +1206,6 @@
             mocks.VerifyAll();
         }
 
-        [Test]
-        [TestCase(true)]
-        [TestCase(false)]
-        public void GivenMainWindowWithOrWithoutUserManual_WhenCanExecuteOpenUserManualCommand_ThenExpectedValue(bool userManualPresent)
-        {
-            // Given
-            var mocks = new MockRepository();
-            var project = mocks.Stub<IProject>();
-            var projectStore = mocks.Stub<IStoreProject>();
-            var projectMigrator = mocks.Stub<IMigrateProject>();
-            var projectFactory = mocks.Stub<IProjectFactory>();
-            projectFactory.Stub(pf => pf.CreateNewProject())
-                          .Return(project);
-            mocks.ReplayAll();
-
-            string path = Uri.UnescapeDataString(new UriBuilder(Assembly.GetExecutingAssembly().CodeBase).Path);
-
-            var settings = new GuiCoreSettings
-            {
-                ManualFilePath = userManualPresent ? path : null
-            };
-
-            using (var mainWindow = new Gui.Forms.MainWindow.MainWindow())
-            using (var gui = new GuiCore(mainWindow, projectStore, projectMigrator, projectFactory, settings))
-            {
-                gui.Plugins.Add(new TestPlugin());
-                gui.Run();
-
-                mainWindow.SetGui(gui);
-
-                // When
-                bool canExecute = mainWindow.OpenUserManualCommand.CanExecute(null);
-
-                // Then
-                Assert.AreEqual(userManualPresent, canExecute);
-            }
-
-            mocks.VerifyAll();
-        }
-
         private static void ToggleToolViewAndAssert(Func<Gui.Forms.MainWindow.MainWindow, IView> getToolViewFunc,
                                                     Func<Gui.Forms.MainWindow.MainWindow, ICommand> getCommandFunc,
                                                     bool initiallyAdded)