mmm joe, I don't think, that's the question...

Well, working with scenes... (thus, that You should use some blender forums for those questions) it might be useful to take a look at this basic tutorial:
https://www.youtube.com/watch?v=p_eTQuK61QAThere's nothin' about MH, but it shows basically, how scenes can be (are to be) used in blender for complex VidEdit pipelines.
Enjoy and try to find more answers within the blender community.