Hi Ellen,
You can follow this link to know all the plugin use in the Sleeky Pro.
– You can follow this tutorial to use the slider in home page.
– And regarding the carousel if you are talking about the slider, then you can get it via revolution slider.
The list of widget which we have used in Sleeky demo home page are given below.
Banner
TOP1
Call To Action
Content via inside the page
Insetfull
Inset bottom
ContentBottom
Bottom
Thanks