Tool Palettes > Object edit > Insert

Object edit > Insert

Adds an edit point to a curve, or an edit point isoparametric curve to a surface.

See Insert additional edit points/isoparametric curves into a curve or surface

See Align curves and surfaces with continuity

The Insert tool shows in green what the new hull shape will be, enabling users to insert CVs with greater visual control over the shape of the curve.

Ensure that display of CVs and hulls are turned on to benefit from this feature.