owl carousel how to use scroll bar Horizontal?

Question

I am using owl-carousel js library. I need Horizontal scroll bar feature. I tried this:

 $("#owl-demo").owlCarousel({
            Horizontal: true, // not working this
            items : 4,
            itemsDesktop : [1199,3],
            itemsDesktopSmall : [979,3],
            itemsTablet: [2400,4], //2 items between 600 and 0
            itemsMobile :[1200,4]           
        }); 

Click this reference