[oXygen-user] Docbook 5 Author mode: way to add indexterm elements?

I have been using Author XML for months now to make a docbook book. Really loving it. It's very powerful and makes me productive. However, I am surprised to find that there's not a Docbook toolbar button or context menu option to create an indexterm element. An indexterm is necessary to build a decent index for your book. http://www.docbook.org/tdg5/en/html/indexterm.singular.html usually it looks like this: <indexterm> <primary>Abraham Lincoln </primary> <secondary>Gettysburg Address </secondary> </indexterm> I am having to drop out of Author mode into XML mode to add <indexterm> every two paragraphs or so. Am I missing this feature or is it something which the developers just haven't gotten around to yet? Thanks. Robert Nagle