This solution is not an official thing yet. It uses JIG's Custom links feature. By using this method you lose the ability to custom link. Retina Ready feature will be essentially off, as it depends on TimThumb. Furthermore it's only available for images of the WordPress Media Library.
Go to the Lightboxes tab > [...]
Yes. There is no built-in setting for this but you can achieve this easily anyway. This is only for WordPress Media Library source, though.
Go to the Captions tab > What text to show on the thumbnails or the Lightboxes tab > What text to show inside the lightbox section in the Shortcode [...]
There would be three types of search:
Live searching in a JIG gallery much like filtering (with JavaScript). This is not yet possible.
Creating galleries based on pre-defined search terms that you set up in the shortcode. This is possible with NextGEN search or Flickr search. This lets you create galleries based on a search.
[...]
Leveraging the facts that:
JIG can detect and show images attached to a post automatically...
You can create a PHP template tag and place it anywhere in the theme...
It's clear that if you use plenty of pictures throughout your posts, an automatic gallery at the beginning or end of articles is a good idea.
Locate [...]