[Boost-users] [Boost][Graph] Reversing a directed edge

I am a newbie to BGL - actually, I'm just beginning to build examples with it. However, I have read the first 4 chapters of "the book", and I've searched the documentation, and I haven't seen a way to reverse a specific edge within a directed (bidirectional) graph. Is there anyway to do this without removing the original edge and then adding the "reversed" edge? I have an application that requires such a "flip" of particular edges at times, but remove/add seems to be a bit "heavyweight" in terms of computation, especially when I already have identified the edge and have it accessible via an iterator. Thanks, Mike