Revolution Slider .. Can I scroll by half of the image ?

Hi. I’m using Revolution Slider with a number of 1200×350 px images where each image consists or two side by side pictures. What I would like to do is to scroll the image by half on each cycle so that picture on the left scrolls off the screen and is replaced by the picture that was on the right which is replaced by a new picture and so on. I’ve tried doing this by creating three wide images with pictures AB, BC and CA for example put together with Photoshop. This works reasonably well but is not quite right as each slide will scroll completely off the screen to be replaced by the next.

Is there a way to achieve the half-scroll effect with Revolution Slider or do I need something else like a gallery plugin ?

Any suggestions most welcome.

Thanks
Ron