I'm using Boa as my editor when developing for Plone. Plone uses some enhanced versions of Zope's page templates and python scripts that have the extension .cpt and .cpy, respectively. The latest version of the Zope CMF also uses .metadata files (e.g. myfile.pt.metadata). Is there an easy way to register such extensions as Boa files so that they get picked up in the open file window? My searches through the Boa source haven't revealed any obvious place to do so.