Hi Pilou,

> That was not yet possible with the offset shell function?

Shell is related but not the same - shell hollows out the entire object.

Like for example with this selection:



Shell hollows out the entire object and leaves those as openings, producing this result:



Shell produces a "thin wall" object.

An Inset on the other hand, does not go through the whole object and instead produces a result that is localized to those faces:



- Michael