After installing 10.11 I wanted to change some fonts (eg. in Adium) to the new system font San Francisco. But the font picker does not show San Francisco as an option for me. Font Book doesn't show it either. Manually importing the files through the Font Book.app doesn't work because it is complaining about duplicates… Am I just looking at the wrong place? I can't find it under either "SFNS" or "San Francisco" in the "All Fonts" list.