Earthworks help

Hi,

I'm after a bit of help if possible, We have purchased Kubla today and I've been working on the cut and fill for a project we've just started.
I have all the existing levels set up no problem, but I was wondering is there a way to do a full proposed levels map (as you get in the surface tool) but using different areas? as I have different construction thicknesses (offsets) in various areas. At the moment I'm doing a surface for each different external surface I need to measure, but it would simplify things if I could do a full level plot then add my areas to it.
I would also like to know if there is a way to export (or find out) the cut and fill volumes in depth catagories, i.e. to fit in with SMM7 not exceeding .25m/1m/2m, 2-4m etc?

Thanks
Garion