You can create an image slider using your existing galleries of the Photo Seller plugin. Your visitors will be able to click on an image from the slider to purchase that image.
How to Create an Image Slider
Step 1) Create a new WordPress page where you want to show the image slider.
Step 2) Enter the following shortcode on this page:
[WPS_photo_slider id="1"]
The “id” parameter represents the gallery ID of the Photo Seller plugin.