Index: Core/Gui/src/Core.Gui/Core.Gui.csproj
===================================================================
diff -u -rf869d21f23cf0986db9b2b68fd1aa2b9e7d28c9e -ra5e15a37ea0bbb5fd55cc431b30a930c9c0f9327
--- Core/Gui/src/Core.Gui/Core.Gui.csproj	(.../Core.Gui.csproj)	(revision f869d21f23cf0986db9b2b68fd1aa2b9e7d28c9e)
+++ Core/Gui/src/Core.Gui/Core.Gui.csproj	(.../Core.Gui.csproj)	(revision a5e15a37ea0bbb5fd55cc431b30a930c9c0f9327)
@@ -28,6 +28,10 @@
     <None Include="Resources\table-export.png" />
   </ItemGroup>
   <ItemGroup>
+    <Page Include="Forms\Backstage\BackstageControl.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
     <Page Include="Forms\MainWindow\MainWindow.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
Index: Core/Gui/src/Core.Gui/Forms/Backstage/BackstageControl.xaml
===================================================================
diff -u
--- Core/Gui/src/Core.Gui/Forms/Backstage/BackstageControl.xaml	(revision 0)
+++ Core/Gui/src/Core.Gui/Forms/Backstage/BackstageControl.xaml	(revision a5e15a37ea0bbb5fd55cc431b30a930c9c0f9327)
@@ -0,0 +1,49 @@
+<!--
+Copyright (C) Stichting Deltares 2021. 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 Lesser 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser 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.
+-->
+<UserControl x:Class="Core.Gui.Forms.Backstage.BackstageControl" 
+                   xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
+                   xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+                   xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+                   mc:Ignorable="d">
+    <Grid>
+        <DockPanel HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
+            <StackPanel Width="100" DockPanel.Dock="Left" Background="Blue">
+                <Button>Terug</Button>
+                <Separator/>
+                <ToggleButton>INFO</ToggleButton>
+                <Button>Openen</Button>
+                <Button>Opslaan</Button>
+                <Button>Opslaan Als</Button>
+                <Separator/>
+                <ToggleButton>OVER</ToggleButton>
+                <Button>Toon log</Button>
+                <Button>Handleiding</Button>
+                <Separator/>
+                <Button>Afsluiten</Button>
+            </StackPanel>
+            
+            <Border/>
+        </DockPanel>
+    </Grid>
+</UserControl>
Index: Core/Gui/src/Core.Gui/Forms/Backstage/BackstageControl.xaml.cs
===================================================================
diff -u
--- Core/Gui/src/Core.Gui/Forms/Backstage/BackstageControl.xaml.cs	(revision 0)
+++ Core/Gui/src/Core.Gui/Forms/Backstage/BackstageControl.xaml.cs	(revision a5e15a37ea0bbb5fd55cc431b30a930c9c0f9327)
@@ -0,0 +1,39 @@
+// Copyright (C) Stichting Deltares 2021. 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 Lesser 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser 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.Windows.Controls;
+
+namespace Core.Gui.Forms.Backstage
+{
+    /// <summary>
+    /// Main user interface of the application.
+    /// </summary>
+    public partial class BackstageControl : UserControl
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="BackstageControl"/> class.
+        /// </summary>
+        public BackstageControl()
+        {
+            InitializeComponent();
+        }
+    }
+}
\ No newline at end of file
Index: Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml
===================================================================
diff -u -r369400e3add949c344017f34f89620f095eac05a -ra5e15a37ea0bbb5fd55cc431b30a930c9c0f9327
--- Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml	(.../MainWindow.xaml)	(revision 369400e3add949c344017f34f89620f095eac05a)
+++ Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml	(.../MainWindow.xaml)	(revision a5e15a37ea0bbb5fd55cc431b30a930c9c0f9327)
@@ -29,6 +29,7 @@
                    xmlns:commands="clr-namespace:Core.Gui.Forms.MainWindow"
                    xmlns:properties="clr-namespace:Core.Gui.Properties"
                    xmlns:viewHost="clr-namespace:Core.Gui.Forms.ViewHost"
+                   xmlns:backstage="clr-namespace:Core.Gui.Forms.Backstage"
                    mc:Ignorable="d" 
                    Title="MainWindow" Height="768" Width="1024" 
                    x:Name="Window"
@@ -105,14 +106,15 @@
     </metro:MetroWindow.LeftWindowCommands>
 
     <Grid Background="{StaticResource BackgroundColorBrush}">
-        <DockPanel>
+        <DockPanel Name="MainDockPanel">
             <StackPanel Name="MainButtonStackPanel"
                         DockPanel.Dock="Top"
                         Height="100"
                         Background="{StaticResource MainButtonBarBackgroundBrush}"
                         Orientation="Horizontal">
                 <Button Style="{StaticResource MainButtonBarButtonStyle}"
                         Tag="{x:Static properties:Resources.MainButtonBar_Project_DisplayName}"
+                        Click="ButtonBase_OnClick"
                         AutomationProperties.AutomationId="MainButtonBarProject">
                     <TextBlock Style="{StaticResource ButtonLargeIconStyle}"
                                Text="&#xE949;"/>
@@ -197,5 +199,9 @@
             <viewHost:AvalonDockViewHost x:Name="AvalonDockViewHost" />
 
         </DockPanel>
+        
+        <DockPanel Name="BackstageDockPanel" Visibility="Collapsed">
+            <backstage:BackstageControl DockPanel.Dock="Top" />
+        </DockPanel>
     </Grid>
 </metro:MetroWindow>
Index: Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml.cs
===================================================================
diff -u -re6e019dca3ff110f39c0a5bb0b1a91eea916489d -ra5e15a37ea0bbb5fd55cc431b30a930c9c0f9327
--- Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml.cs	(.../MainWindow.xaml.cs)	(revision e6e019dca3ff110f39c0a5bb0b1a91eea916489d)
+++ Core/Gui/src/Core.Gui/Forms/MainWindow/MainWindow.xaml.cs	(.../MainWindow.xaml.cs)	(revision a5e15a37ea0bbb5fd55cc431b30a930c9c0f9327)
@@ -655,5 +655,11 @@
         }
 
         #endregion
+
+        private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
+        {
+            MainDockPanel.Visibility = Visibility.Collapsed;
+            BackstageDockPanel.Visibility = Visibility.Visible;
+        }
     }
 }
\ No newline at end of file