C# WPF MVVM MenuItem Template

Как изменять Template для MenuItem на топ уровне?

<Menu Grid.Row="0" DataContext="{Binding MenuViewModel}" ItemsSource="{Binding Items}" Background="#373737">
        <Menu.ItemsPanel>
            <ItemsPanelTemplate>
                <DockPanel HorizontalAlignment="Left"></DockPanel>
            </ItemsPanelTemplate>
        </Menu.ItemsPanel>
        <Menu.Resources>
            <Style TargetType="{x:Type MenuItem}" BasedOn="{StaticResource {x:Type MenuItem}}">
                <Setter Property="Command" Value="{Binding Command}" />
                <Setter Property="Header" Value="{Binding Header}" />
                <Setter Property="IsCheckable" Value="{Binding IsCheckable}" />
                <Setter Property="IsChecked" Value="{Binding IsChecked}" />
                <Setter Property="Template" Value="{DynamicResource CheckableMainMenuItemControlTemplate}"/>
            </Style>
            <HierarchicalDataTemplate DataType="{x:Type vm:MenuItemViewModel}" ItemsSource="{Binding Items}"/>
        </Menu.Resources>
</Menu>

MenuItem VM

public class MenuItemViewModel : BaseViewModel
{
    public string Header { get; set; }
    public bool IsCheckable { get; set; }
    public List<MenuItemViewModel> Items { get; private set; }
    public ICommand Command { get; private set; }
    public MenuItemViewModel()
    {
        this.Items = new List<MenuItemViewModel>();
    }
    #region IsChecked
    private bool _IsChecked;
    public bool IsChecked
    {
        get { return _IsChecked; }
        set
        {
            if (_IsChecked != value)
            {
                _IsChecked = value;
                OnPropertyChanged(nameof(IsChecked));
            }
        }
    }
    #endregion
}

Через код как-нибудь стучать к Template?