Thanks for all your replies - I now know about hierachies within slides, but that my ultimate goal, a separate 'slides' track is not supported. This is, I believe, a major limitation and, were it not for the fact that my presentation needs to be 'clickable' I would have used Vegas instead. Disappointing and definitely something which needs to be addressed in further releases - lack of this functionality seriously hampers it's use (especially when it's clearly available - adding a copyright logo as an image is possible across all slides, so why is it not possible to have multiple image tracks...) Cheers, Keith