How to make separate fancybox galleries?

Question

JavaScript

There is a page with several fancybox galleries, it is necessary that when opening a photo, in addition to this photo, there are only those that correspond to the original group.

Tried to use rel and data-fancybox-group attributes, but no effect. How can the problem be solved?

Answer 1

For the first group: data-fancybox="group-1"
For the second group: data-fancybox="group-2"