I'd like to have the user click a button and one of the video streams in a parallelElement gets bigger and sits over the top of the other one. The problem is that I can't see how to specify which layer the video is on, so it only works if you enlarge the video on teh top. I tried using the order property of the LayoutAttributesFacet but that didn't work - should I be getting the parent of the displayObject and swicthing the child order?
That sounds like a bug: the "order" property should work (on the trunk, this property is now called "index", btw).
Can you file it at http://bugs.adobe.com/jira/browse/FM with some code to reproduce? Quite some work went into the layout system this sprint, so you may find the issue is fixed on the trunk already.