From the Tools toolbar, select
the Pen tool 
.
From the Tool Options palette,
select the Edit Mode 
.
You can set and apply transformations to selected nodes from the Pen tool’s Tool Options palette.
To adjust and apply transformation settings:
From the Tools toolbar, select
the Pen tool .
From the Tool Options palette,
select the Edit Mode .
Note: You may need to
click the More button 
to view all the options in the Tool
Options palette.
Select the node(s) to transform.
From the Tool Options palette select a transform function:
Expand 
Sets the number of pixels to expand nodes.
Contract 
Sets the number of pixels to contract nodes.
Skew X 
Sets the number of pixels to skew nodes on the horizontal
axis.
Skew Y 
Sets the number of pixels to skew nodes on the vertical
axis.
Rotate Sets the degrees nodes will rotate.
Type a value for the selected transformation setting.
Click Apply
.
Adding or Removing Nodes on a Contour