I know there was a setting somewhere for permalinks which I now can’t find. What I wanted to see if I could do was have a permalink not dependent on position within the gallery. Something like:
The permalink is already included.
In the album, click on the thumbnail to open the large image.
In the slideshow view, click on the image icon on the right.
You’ll see a vertical tool bar. Click on the chain icon to go to the permalink page.
For further explanation, the JavaScript slideshow operates on the image’s position within its data set. Backlight provides the permalink to a static page for each image. You can skip the JS slideshow by settings the album template to use the HTML pages for images, though I personally dislike this; the JS slideshow is a really nice way to move through the images.
The permalinks are also what gets used when sharing your image to social media via the share buttons.
I agree with you that the slideshow is an excellent way to allow site visitors to browse. It was when I put text into the contact form asking those with a question about a specific image to identify it, that I realized I needed a permalink to avoid ambiguity.
I’ve added text to explain how to get a permalink, which I think will work just fine for my purposes