FusionForge provides many tools to aid collaboration in a development project, such as bug-tracking, task management, mailing-lists, SCM repository, forums, support request helper, web/FTP hosting, release management, etc. All these services are integrated into one web site and managed through a web interface.

This plugin contains the extsubproj subsystem of FusionForge. It allows each FusionForge project to have its own extsubproj, and gives some control over it to the project's administrator.