Smoothing poly-surfaces extruded along a point

Hi,

I'm very new to weaverbird and I have been trying to use the smoothing function to remove sharp edges of my polysurfaces (under the label augean stables). I would like them to look like a hill rather than pointy mountains if that makes sense.

I cannot quite so easily figure out how to do so/what would be the most efficient way of getting it so anyone's help will be greatly appreciated!

I've attached the screenshot as well as the rhino file of the surfaces I want to smooth. Thank you very much!

Sharon