Random gallery or random image

Not out of the box but it would be possible to build yourself. To display a random gallery you’ll need to modify the easy_image_gallery() function a bit. Find all posts with galleries, store their ids in array and use shuffle() or rand() to mix it up. To display a single image you’ll also need to modify the function to pass in an image ID or similar.

Have a look inside the function I mentioned to see how it’s built