on a polyline, manipulating an existing point

Given an existing line drawn with the polyline tool, how does one go back and manipulate the handles on a point? When a Bezier line doesn’t appear the way I want the first time, I don’t know how to reshape it, and so I’m just deleting and re-drawing. I want to grab the handles on various points and move them, but I can’t get them to re-appear. :-[

Draw your Polyline.
Select the “Contour Editor” (hold down the Select-Tool
and choose the Tool from the pop-up-window.

Click on the Polyline and drag the Points or Handles.
Hold down the Command-Key (Mac) to drag only one side of the Handle.


Oh, yeah, I did read that somewhere: Polyline to draw, Contour to edit. Thanks.