There is a [ame="http://orbithangar.com/searchid.php?ID=3389"]Velcro Saturns[/ame] addon. AFAIK you cannot use AMSO vessels outside of the included scenarios, so putting that CSM on a Velcro stack is no-go. You might try NASSP, they're much less strict with their security measures, but their vessels are many times more complex (among the most complex vessels for Orbiter,) and take a very long time to learn to use. I don't know of any other Apollo addons. :shrug: