Template:Insert knot
From TOI-Pedia
The geometry of the curve can be adjusted by adding extra vertices into the curve manually by inserting a knot. (CURVES INSERT KNOT ) This will make it possible to locally adjust the vertex density of a curve. Which may be use full for local deformation of the curve.
As opposed to the add points tool, you need to go to component mode, edit points, select an edit point, then execute the Insert knot command.
