Would like to see a geometry, freestyle pen that allows you a offset slider to be able to draw geometry on block models like gravity sketch
You can use the tube tool with path setting & snap to draw on the surface of models. I think that basically what you’re talking about from Gravity Sketch?
Just like GS there is an offset setting for how far the tube line is snapped from the surface normals. And also like GS you can then edit the size of the tube……GS doesn’t have profile editing so Nomad wins in that respect 
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