Prevent div from scrolling when dragging an item

[WillyWilson1]

I'm using v3, which is excellent. One thing I cannot figure out is, on a mobile (touch) device, when I drag an item across a container, or larger div, the whole thing moves. Is there a way that I can anchor or prevent the bigger, outer element from moving? Not the whole screen, but the 'working/dragging' area.

Thanks PB