JQuery Tools Scrolling by touch disables vertical scrolling

I have a similar slider with the one located on jquerytools.org

But how to disable vertical touch events on the slider? This is quite problematic when the slider in portrait mode occupies almost the entire screen.

I tried

$("#flowpanes").scrollable({ circular: true, easing: 'swing', vertical: false })

but it does not work.

Anyone have a solution?