Define Section by Point and Normal

1. Apply another Stretch operation.

2. Select the body and Exit. Toggle to the By Section option. If you cannot pick a face to define the section, you may pick a point.

3. Select the point indicated by the arrow in the picture below:
   

4. The default normal direction is in the Z direction.
   

5. Click the arrow's base point. Select the Along XAlong X option.

   

6. Click OK.