I created lots of XPages and the custom control in new application. Then, I need to write the design spec documents. Is there any good to help it? "Design synopsis" menu in Notes seems not to export XPages design information.
When you connect XPages to an on disk project (ODP - see the help for that), you get a directory with design elements. XPages and controls are XML files, so you could use xslt to report on them.
Hope this helps