No - there is no current way to select more than one layer with the UI to do things like unfreeze. It was only a short time ago that there were only 20 layers... So some facilities were not important then..
Let's check on levels. The Move To... Context subcommand in Select/Move when over a selected object(s) exists on Beta 2. If you are on 5.1.2a, (which sounds like you may be because the context menu is showing the now defunct :normal, simple, endpoints: -> I'll have to research a second.
