Can the slider act based on scrolling?

By default the layer animations are starting, when you scroll to the half of the slider, as you see on our homepage, and you can turn that option on/off with the Play when visible option. You can't make the animation to stop, or reverse, like in ScrollMagic or Skrollr, so we don't have that kind of option, because those are not sliders, but elements with whole different kind of javascript behaviour.