In this thread exercise I stumbled upon a problem where I realized that scaling the middle edge loop outward to create a torus approximation does not work as it is not scaling uniformly. The
Shrink/Fatten with Alt+S will work, but it will pinch the geometry when applying Subdivision Modifier.
So instead of scaling the middle edge loop outward, I wanted to find a workaround and do something that scales the upper and lower outer edge loops inward on only the XY plane, similar to the behavior of the Inset feature.
So I tried
Shrink/Fatten, but unlike in the case of the middle edge loop, this will now also scale the Z component. I was wondering if there is a scale similar to the Inset feature that would operate only on the XY plane?