4 From the Transform menu,
select Set Points.
5 In the Set Points dialog
box, check Set Z, clear Set X and Set Y, and click World Coordinates.
6 In the Front viewport,
drag the selected control points up.
This aligns all of
the selected control points to the same z-value (up in Front viewport),
which flattens the surface.
7 Adjust the control points
at the top of the body using the same technique.
In the Front viewport, use a window to select the control points at the upper left edge of the body, and drag them up to form the tail.
Look in the Top viewport
to see which control points are selected. In the Front viewport, you can
only see the control points closest to you in the view. This is because
the second control point is directly behind the one you can see in the
Front viewport.