Move entire image, not cropped

[lobino]

I set option "fit portrait", so Supersized slider has to crop right and left images when they doesn't fit (crop from the center). That's ok. That is the final result I'm looking for when slider stops. But I need that, when it moves from slide 1 to slide 2..., the second slide image has not to to start cropped, so the entire image moves and then it stops in center position (cropped left and right as before). Is that possible?

[lobino]

I try to set "#supersized li { overflow:visible;" instead of "hidden" in supersized.css and it starts working, but only for the left side of each image (or slide). But it does not work for the right side that is "under" the next image (or slide). Maybe we have to set some padding or margin to prevent overlapping? Please Help!