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Is there a way to edit the original 2d mesh of a swept hex-mesh?

I have created a 2d hex mesh on a solid face of a part. In order to model for chamfers on holes through the part, I have revolved a 2d tet along the chamfer, extruded my hex mesh to the depth of the revolved tet, equivalenced nodes, and swept the free face of all elements through the rest of the thickness of the part. There are some lines I forgot to offset and mesh seed (needed for modeling my 2d welds of interfacing parts) in my original mesh. Is there a way to directly edit the original 2d mesh so that it automatically updates my swept 3d mesh after I add the news lines and seed them? I would like to avoid redoing the entire mesh from scratch if possible.
Thanks!