Some wishes: - ability to shell from the center of a polygon and nurbs surfaces - shelled polygons should stay polygons if you 'ungroup' them. (now they become nurbs surfaces and those are allot harder to control and edit > using extract tool for this is not very helpful because radius are not 'clean' but have allot of vertexes) - shell command should be part of the editing history (as for fillet en chamfer as well)