[oXygen-user] Maintaining slightly variant standard frameworks

I'm working on integrating the Oxygen applet with RSuite specifically for DITA use. Thus I want to use the out-of-the-box DITA framework but I need to modify it slightly to add RSuite-specific handlers for actions that select things (xrefs, conrefs, images, etc.) What is the best way to manage this sort of small change to an Oxygen-supplied framework so as to avoid maintaining (and keeping up to date) a fully copy of the framework? Thanks, E. -- Eliot Kimber Senior Solutions Architect, RSI Content Solutions "Bringing Strategy, Content, and Technology Together" Main: 512.554.9368 www.rsicms.com www.rsuitecms.com Book: DITA For Practitioners, from XML Press, http://xmlpress.net/publications/dita/practitioners-1/