I'm using Photos 1.1 on OS X El Capitan Beta. Currently all my photos (~50GB) are stored in iCloud. I've read that the new Photos in El Capitan supports 3rd party extensions. Are there any extensions available yet? I've been editing my photos inside Photos but I would like to use a more powerfull tool. Which program would you recommend? Photoshop CC, Lightroom, Pixelmator or?