Tool Palettes > BlendCrv Tools > Blend curve add points

BlendCrv Tools > Blend curve add points

Adds control points (constraints) to an existing blend curve.

See Edit or reshape a blend curve

If an end point of a blend curve is active, using this tool will extend the blend curve.

To add a point interior to a blend curve, choose Pick > Nothing and then click and drag on the blend curve to place a new point.