Creo Direct > Designing in the Creo Direct Environment > Working in Part Mode > Working with 2D Geometry > Creating 2D Geometry > Splines and Points > To Add or Delete a Point on a Spline
  
To Add or Delete a Point on a Spline
• To add a point to a spline, right-click a spline anywhere other than on its existing points and endpoints and click Add Point.
• To delete a point or an endpoint from a spline, right-click a point or an endpoint and click Delete Point. The spline is recreated automatically. The point next to the deleted point changes to an endpoint.