From the Tools toolbar, select
the Pen tool 
.
From the Tool Options palette's
Mode section, select Edit Mode 
.
Click on a contour or path, then select one node on the contour.
The direction of a contour flows from the start node to the end node. When you place the cursor over the start node, “START” displays next to the cursor. When you place the cursor over the end node, “END” displays. If the object has an closed path, “CLOSE” displays.
For vector objects, you can reverse an entire path (all the contours in the object) or reverse one contour within a path. The direction of a contour or a path affects two important things:
Text flow along a contour. Reverse direction to change how text aligns on a contour.
Fill properties of overlapping contours. When contours with different directions overlap, the resulting fill is transparent. Reverse one contour overlapping another contour to create cutout objects.
To reverse a path or contour:
From the Tools toolbar, select
the Pen tool .
From the Tool Options palette's
Mode section, select Edit Mode .
Click on a contour or path, then select one node on the contour.
Note: To reverse multiple contours, select one node from each contour.
Right-click on the path or contour,
choose Edit from the context menu, and choose:
Reverse Path (Ctrl+Shift+R) or Reverse
Contour (Ctrl+R).
Note: You can also access these commands by choosing Objects > Edit.
Adding or Removing Nodes on a Contour
Reversing the Direction of Contours or Paths