There are various ways to sort an image gallery. When a gallery is created the images are saved in the order that they are added, and the default sorting method is drag and drop.
Click on the sorting dropdown to change the sorting method.

Sorting Options #
The following sorting options are available:
Drag and Drop #
Drag the images into the order that you would like them to appear.
Filename Ascending / Descending #
Sorts the images alphabetically by the filename.
Shoot Time Ascending / Descending #
Sorts the images by the time the photo was taken.
Save Time Ascending / Descending #
Sorts the images by the time the image file was saved.
Upload Time Ascending / Descending #
Sorts the images by the time that they were uploaded to the website.
