That, you will need to refer to the LayerSlider plugin documentation, plus explore all the settings of the plugin options as well. It’s a big plugin and takes some time to get familiar with it.
Were you aware that there is an import of the slideshow that you can use that gives you the exact slideshow as the demo site has? You import it and all the text and effects, etc, are there for you to edit. https://www.styledthemes.com/celestial-reloaded-setup/155-setup-a-layerslider-slideshow-like-the-demo-website
