Now, I found a trick operation in Visio 2013 on a touch panel.
When you drag single finger, you can only move page, that is panning.
But when you start Visio Event Monitor,
single finger dragging changes to selection of multiple shapes inside dragged rectangle.
Please try and enjoy and please tell me, if I am right or not,
if you have Visio 2013 on a touch panel machine.