Enhance Extruder transformer to have the option to extrude geometry along a complex path similar to the way AutoCAD does to create 3D lines, surfaces, and solids.
Ideally the ability to extrude ANY closed 2d shape (profile) along polylines (paths) to create 3d solids.
The profile being placed on the path centred OR at one of the profiles minimum bounding edges or corners (ie 9 placement options for the profile on the path)
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Initially, development could be more basic so that any profiles would be limited to simple shapes only eg circles, squares, rectangles or triangles - and only centred on the polyline.