Changing the curve type

1. Select a point on a curve.
2. Click the [Shapes] tab.
3. Click [Edit Point] in the [Edit Point] group, and then click [To Smooth], [To Symmetry] or [To Cusp].
   

   To Smooth

   

   To Symmetry

   

   To Cusp

   
4. Drag the solid black handle to adjust the shape of the line.

   The shape can be changed by dragging the solid black handle on either side of the point.