NextGen – Share to Facebook

How do I make it so that I can share specific photos from a NextGen Gallery? Right now when I try to do that the previous only shows the top image. (https://www.randpaulreview.com/libertygallery/)

I need to be able to set this up so that I schedule photos to share on my Facebook page via hootsuite. Atm it’s not working at all. Activating the permalink structure just seems to make the URL longer and not much else. Maybe I’m doing something wrong.

Thanks for the help!