To figure out how these works simply refer to this page in the Word Press control dashboard. you can then recreate the changes anywhere. Your event photos look awesome by the way! Best wishes, Ryan
You can add this on any Post or Page. So for example, if you have a post which is about a trip away and you take lots of photos then you can post them here and people can scroll through.
This is similar to the left but it has one focal point and images load into a slide.