Kinect / Slideshow

Hello guys! i was wondering if anyone could give some help with this slide composition. I'm trying to control the slideshow using a kinect camera and synapse. I really dont know if this is the best way to do it but at least im having some progress. The thing that i want to find out is how to move the images by the movement of my righthand. The same thing that we do using the finder to chek out the images foward and backwards using my hand. does anyone know anything about this?

here is the composition,

thanks!