[opensuse] Template Changer Extension / Change template of an existing document

http://extensions.libreoffice.org/extension-center/template-changer I previously have used this Template Changer extension. Only it now [not being an oxt] will not install into my current version of LibreOffice. Anybody have a working version of this extension or know a workaround to achieve the same behavior? [change the template of an existing document]. libreoffice-3.5.4.7-1.1.2.x86_64 openSUSE 12.2 x86_64 GNOME3.6 -- Adam Tauno Williams