WPF Material design date picker (select range aka range picker) - wpf

Question

I have been searching quite a lot and not able to find any solution available, so I have decided to ask here. I am currently using WPF Material design for several controls (https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit). Date Picker works fine, however I have came up to the point when I need to select range of dated and not a single one. I need to be able to do like this:
Is there any way to select range instead of single date?
Here is part of my code for Datepicker.xaml:
<DatePicker x:Name="ReportDateTimePicker" HorizontalAlignment="Center" VerticalAlignment="Center" Height="40"
Padding="0,3,0,0" Margin="10,1,10,-1" FirstDayOfWeek="Monday" Width="148"
FontFamily="{StaticResource Roboto}"
CalendarStyle="{DynamicResource DatePickerCalendarStyle}"
SelectedDate="{Binding StartDate}"/>
Also this part is from style datetimepicker.xaml:
<Style TargetType="{x:Type DatePicker}">
<Setter Property="Foreground" Value="#FF333333" />
<Setter Property="FontSize" Value="14" />
<Setter Property="Background" Value="Transparent" />
<Setter Property="IsTodayHighlighted" Value="True" />
<!--<Setter Property="SelectedDateFormat" Value="Short" />-->
<Setter Property="Padding" Value="0" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<!--Set CalendarStyle to DatePickerCalendarStyle.-->
<Setter Property="CalendarStyle" Value="{DynamicResource DatePickerCalendarStyle}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DatePicker}">
<Border BorderThickness="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}">
<Border.BorderBrush>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="{DynamicResource BorderLightColor}" Offset="0" />
<GradientStop Color="{DynamicResource BorderDarkColor}" Offset="1" />
</LinearGradientBrush>
</Border.BorderBrush>
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="Transparent" Offset="0" />
<GradientStop Color="Transparent" Offset="1" />
</LinearGradientBrush>
</Border.Background>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Duration="0"
To="1"
Storyboard.TargetProperty="Opacity"
Storyboard.TargetName="PART_DisabledVisual" />
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid x:Name="PART_Root"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Button x:Name="PART_Button"
Grid.Column="1"
Foreground="{TemplateBinding Foreground}"
Focusable="False"
HorizontalAlignment="Left"
Margin="3,0,3,0"
Grid.Row="0"
Style="{StaticResource DropDownButtonStyle}"
VerticalAlignment="Center" />
<DatePickerTextBox x:Name="PART_TextBox"/>
<Grid x:Name="PART_DisabledVisual"
Grid.ColumnSpan="2"
Grid.Column="0"
IsHitTestVisible="False"
Opacity="0"
Grid.Row="0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Rectangle Grid.Column="0"
Fill="#A5FFFFFF"
RadiusY="1"
Grid.Row="0"
RadiusX="1" />
<Rectangle Grid.Column="1"
Fill="Transparent"
Height="30"
Margin="3,0,3,0"
RadiusY="1"
Grid.Row="0"
RadiusX="1"
Width="260"/>
<Popup x:Name="PART_Popup"
AllowsTransparency="True"
Placement="Bottom"
PlacementTarget="{Binding ElementName=PART_TextBox}"
StaysOpen="False" />
</Grid>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>