For such functionality you can check out the Riva Slider, which is advertised in the Easing Slider admin panel. The Easing Slider will get a new interface in a forthcoming update like the Riva Slider, but it will still be limited to 10 images (or a similar number; won't significantly increase).
You can add more than 10 images to the Easing Slider if you know how to code more in. Requires a lot of duplicating code and can be troublesome if your not too sure what you're doing. We don't assist with such modifications because we can't maintain them when it comes to updates, etc. FYI, updating will remove any changes you make to the plugins files.
The redesigned interface update could be a while. Development is slow at this current time. We are working as hard as we can though.