Curve Knot Spacing
Changes the parameterization of the picked blend curve(s). Choose either the Chord or the Uniform tool.
Access these tools from the Blend Curve Toolbox:
Blend Curve Chord
Changes the parameterization of the curve's edit points in current units, where the chord length is the cumulative straight line distance between consecutive edit points.
Blend Curve Uniform
Changes the parameterization of the curve's edit points uniformly. The parameterization is based on the parameter range of the curve, not the physical length.
Pick the blend curve or curves you want to edit, and then choose the Chord tool or Uniform tool according to the parameterization you want for the underlying curve.
What if...?
- I want all new blend curves to have a certain degree or parameterization?
In the BlendCrv Tools palette, select the Blend Curve Create tool 
, then select the 
icon to set the degree and parameterization options.