Select the Photo Slideshow widget from the Widget menu.
Here you can select images already uploaded to your site, or you can import new ones using the Upload Image button. Select all the images you wish to be displayed and click Done Selecting Images.
Choose to rearrange your images, or change the Layout and Display settings.
Changing the layout is helpful for fitting the photo slideshow in with your website design.
Changing the display will affect how the images appear in the Photo Slideshow.
Once saved, your Photo Slideshow will now display on your site.