Button Style: you can change the style of the Slide Show button to “button” or Animation by checking the corresponding radios.
The slide show button is in a video tape shape   (Animation) by default, when you check the “Button” radio, the button shape will turn to the Media Player button style  
Interval: this value stands for the slide show interval in seconds.
Auto Rewind: If this checkbox is checked, when the slide show reaches the last image, it will start over from the first picture.
Auto Start: If this box is checked, the slide show will be started automatically when the page is loaded.
Apply to: you can apply the slide show element to the website pages or galleries on current page.