Lightroom: allow plugins to create stacks
It'd be great if the API gave access to stacks. I'd like to be able to use panorama, and HDR programs that automatically determine groups of images to be able to group those images in to a stack. Examples: Autopano pro by Kolor lets you find the panoramas automatically. Photomatix batch processing also automagically finds the bracketed sets. Since the built in autostack by capture time doesn't work for all situations, it seems a prime opportunity to let plugins do this autostacking.