This block is repeater block that allow you to create item as much as you want. You will see in that block option 2 repeater sections. First slider repeater and second is detail repeater. Slider image repeater is named as "slider". Detail repeater named as "slider detail".
In slider detail option you can add a title and icon beside it. Also a HTML content. You can choice to hide the detail panel if you want slider with image without anything in it.