How to Add This to 4images gallery
Go to: https://www.addthis.com/
Make your selection and copy the code in to the details page.
Go to Edit Template > Load Your Theme > Then Load details.html
Open the details.html template
{lightbox_button} {postcard_button} {download_button} {download_zip_button}
Paste the Addthis code under the above line.
Note: Select Get sharing buttons for a website
