Unfortunately the LayerSlider you recommend does not have a parallax effect and the client is insistent on having that effect. If there’s a way to implement that in the LayerSlider, let me know. Otherwise the only option seems to be trying to edit the Fullscreen Slider which does have a parallax effect.

Thanks for the info on the slider files. I’ll let you know if I’m able to figure out how to randomize the Fullscreen Slider.

LOL, I *am* the developer. Do you at least know which file in the theme is outputting the fullscreen slider code? Line 301 in “config-templatebuilder/avia-shortcodes/slideshow.php” had seemed promising because it has an “orderby” parameter within a get_posts() call, but modifying that didn’t change the slide order.