Yes I can help now. I have got content assist working (to a reasonable level) by doing the following. 1. Write an XSD for your custom tags. 2. In Eclipse go to. Window -> Preferences-> Web and XML -> XML Catalog. 3. Add a new entry using your tag namespace and pointing to your xsd file. Now you should have content assist (at the moment this does not give me the actual tags themselves, but once I have opened the tag it will give me attribute content assistance). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4166530#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...