To Define the Path That the Camera Will Travel During the Sequence

Place a line, line string, arc, ellipse, curve, or B-spline curve to define the path the camera is to travel. (If you do not want the path to be visible in the sequence, place the path as a construction element, or on a separate level that is not displayed in the source view for the sequence.)
From the FlyThrough Producer dialog's Tools menu, choose Define Path.
Identify the element that defines the camera path at the point at which the camera path is to begin.
Accept the element at the point at which the camera path is to end.
Note: For best results when placing a camera path around a design, place the camera path so that it lies on the x-y coordinate plane.