How-to Change HTTP Respose Header in Sun Java System Web Server

I have been looking around how-to change HTTP Respose header in Sun Java System Web Server 7.0 U2. After a while arround, finally found it is just simple step that we need. Just edit server.xml, find <http> tag, and put the property name in there. List property name you can get via get/set-http-prop in the wadm command line.