To install these plugins, point Eclipse at this site. GEF SDK 3.4.2RC2 S200902121351: contains runtime, source, and documentation. GEF SDK 3.4.0RC3 S200806021713: contains runtime, source, and documentation. GEF SDK 3.5.0RC4 S200906091000: contains runtime, source, and documentation. GEF SDK 3.5.0M6 S200903161602: contains runtime, source, and documentation.