If you have used the Facebook Feed element, you already know how to use the Facebook Feed Carousel. All the options are same for both the elements. The only new thing you will see here is the Carousel settings.
Carousel Settings- The first few settings are simple toggle bars. Use the toggle bar to enable/disable the Show Date, Infinite Loop, Autoplay, Pause on Focus and Adaptive height. The next two settings are for Slide Speed and Autoplay Speed. Type in any value manually. Use the Slides to show filed to pick the number of slides you want to have.