I understand that you wanted to know “engraving” settings. But one question folks have had is how to use the engraving to cut lines rather than vectors. This has been a topic about paper too.
I thought I would add that part of the process here too in case folks don’t quite understand or are new to vector design. Simply changing a vector shape to engrave will engrave out the whole shape surface rather than the perimeter of the shape.
Of course you can do this in a bitmap editing program too, but here’s how I would do it in Inkscape.
Converting a path/stroke to an engravable line isn’t too hard.
Notice the circle on the left is a one path vector with a narrow stroke definition. It has been turned from an object as circle/ellipse shape to a path. The circle on the right has a stroke definition of 0.5mm. It would still processes as a vector cut as it is defined now.
In the Object menu, convert the stroke to path. Now you have two paths that are filled as a shape that can be engraved.
The stroke definition of these two paths are defined very narrow with no defined stroke color.
You could use a light engraving here to cut a circle shape that won’t have any start or stop points. It certainly takes longer, but there are times to do this.
And the following along with other topics like it shows an application of engraving used to make cutouts.