Provide an API for the purging of elements. The current purging tool is limited and/or requires more work than it is needed in many occasions. A solid API for the selection of different purge-able element categories, or particular elements within, would be great. CF-1201 [Purge unused objects]
References:
http://forums.autodesk.com/t5/revit-api-forum/purge-unused-via-the-api/m-p/6431564#M17279