FXGen is a GUI front-end to the HeaderImporter command line tool (and its supporting Train scripts) that makes it easy to import whole SDKs and custom libraries as
.fx Files, so that they can be used with the Elements languages.
Elements already ships with
.fx files for the major iOS and OS X SDKs, but FXGen makes it possible to use beta SDKs we haven't added support for yet, or to manually re-import an existing SDK.
The Cocoa section contains two tutorials for FXGen: