Add the ability to include the filenames as a caption and modify the names if needed.

The pictures come up now without any captions and as in what I would like to use it for I need that. I want to load all the pictures of products (in this case world currency) and have the filenames below it which are also the calalog numbers. Sometimes it would be necessary to alter the image title to reflect something unique. I am sure this would be nice to have for any set of photos.