Hi, I've written an RNC schema that plug the schemas for XSLT into the schema for XProc. The goal was having completion in oXygen for both document types in the same buffer in the oXygen editor. Thought that could interest you: http://fgeorges.blogspot.com/2008/11/xproc-with-xslt-completion-in-oxygen.ht... Regards, -- Florent Georges http://www.fgeorges.org/