To download pictures and photos via FTP, click «Add Images» and choose appropriate source:
Here you can import pictures from the folder, which has to be situated on your server here – wp-content/uploads/directory. You just need to write the name of folder and click «Upload».
In the case you want to import images from distant server – tick the checkbox «Import from remote server» and then enter the required credentials for needed FTP server:
Don’t forget to write the folder name and click «Upload».
Then select needed photos for your gallery and click «Import Images» button —
And don’t forget to save settings changes you have made in you gallery.