[Plugin: JJ NextGen JQuery Slider] a non linear transition

I’m useing this plugin only since one hour and I’m very happy with it.
But I’ve got one question:
The Slide now contains a linear slide. But I want one like in the CSS3 Transition “ease-in-out”. Is there any setting I can use to set the kind of slide?
Is there a Website which includes all setting options, and related parameters?
I found found a large sample of setting options in the readme but there are no parameters i can use.
Thank your for your help,
h3p315t05