1. Sort images from metadata fields?

2. Display select metadata: captions, filenames et al?

3. Update a site on the fly by adding images to a folder/directory, without entire re-export?

I use Slideshow Pro Director which does the above. It renders lovely HTML5 but when it senses mobiles devices. Otherwise SSP uses Flash which is the reason I am looking for an alternative.

Its strongest feature: once I create a site (album, collection, whatever) I can add, delete and re-order images in the background.

I apologize if these questions are answered in FAQs and elsewhere. I spent a while searching.