Control Point's Status
= Free - Drag the curve's points freely. 
= Fixed - Point cannot be dragged.
You can release or fix a spline curve's point. First, select the point and then select the contextual function:
Release
Fix
= Free - Drag the curve's points freely. = Fixed - Point cannot be dragged.
You can release or fix a spline curve's point. First, select the point and then select the contextual function:
Release Fix