This stack can be used as a kind of slider for viewing thumbnails or pictures at a larger size. In Thumbnail stack, pictures change when you hover the cursor and move it left and right.
The slider can be useful for displaying your work, for displaying product photos in a store. Mostly, probably, it will be useful for shops, for displaying goods and works. For the slider, you can apply a lightbox with some settings or set a link leading to a page with a more detailed description. Up to eight images can be loaded at the moment.
The size is fixed or 100% in width. You can choose the position of the view indicator, top or bottom.
In the lightbox settings, you can enable keyboard support: left and right keys, and Esc. You can also loop through the images and apply Overflow. With the Overflow function, large pictures will be displayed in an enlarged view in height. The lightbox also supports displaying thumbnails. In the settings, they are disabled by default, but you can enable them to be displayed horizontally or vertically. To exit viewing, you can click on the close button, Overlay or by pressing Esc.
And for pictures you can add Alt.tag and description (for lightbox).
P.S. And yes, there is no automatic picture change.