MainWindow.xaml

<Window x:Class="TempDir.MainWindow"
        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"
        Title="TempDir"
        Height="350" Width="500" x:ClassModifier="internal"><!-- TODO: Add icon in a way that works. -->
        
    <DockPanel Margin="10">
        <StackPanel Orientation="Vertical" DockPanel.Dock="Left" Width="180" Margin="5">
            <Button Content="Mark _new folder"
                    Margin="2"
                    Click="MarkFolderButton_Click" />
            <Button Name="EditFolderButton" Content="_Edit folder"
                    Margin="2" IsEnabled="False"
                    Click="EditFolderButton_Click" />
            <Button Name="UnmarkFolderButton" Content="_Unmark folder"
                    Margin="2" IsEnabled="False"
                    Click="UnmarkFolderButton_Click" />
                
            <StackPanel HorizontalAlignment="Right" Orientation="Vertical" DockPanel.Dock="Right"
                        Width="40" Margin="0,50">
                <Button Name="MoveUpButton" Content="▲"
                        Margin="2" IsEnabled="False" 
                        Click="MoveUpButton_Click" />
                <Button Name="MoveDownButton" Content="▼"
                        Margin="2" IsEnabled="False"
                        Click="MoveDownButton_Click" />
            </StackPanel>
        </StackPanel>
            
        <ListBox Name="CurrentFoldersListBox"
                 DisplayMemberPath="Name"
                 Margin="5"
                 SelectionChanged="CurrentFoldersListBox_OnSelectionChanged" />
    </DockPanel>
</Window>