I highly recommend the TemplateMapper plug-in by Chris Despopoulos (to the extent of providing it as part of the course materials in my FrameMaker Template Design seminar).
The user guide for TemplateMapper is available at http://www.microtype.com/training/TemplateMapper.pdf Shlomo Perets MicroType, http://www.microtype.com Training, consulting & add-ons: FrameMaker, Structured FM and Acrobat
