Ulead MEDIASTUDIO PRO 6 User Manual page 301

To change the end time of a moving object:
Select the object you want to change with the Moving Path tool. The
1.
moving path of the object appears.
Move the Preview slider to the last frame in the Time Control Panel,
2.
the object moves to that position on the moving path, and then click the
Add Keyframe button. A keyframe is added to the Keyframe slider.
Drag on the keyframe and move it to the position where you want the
3.
movement of the object to end.
Move the Preview slider to the start or click on the Start Keyframe
4.
to return the object back to its beginning position.
Click the Play button to see the motion of the object.
5.
Performing minor adjustments in time
After laying out all your objects and specifying their various moving paths,
you may find that you need to go back and adjust the timing of a particular
object by a few frames, but don't want to affect its position on the
moving path. To do this, select the keyframe belonging to the object and
then move the keyframe along the Keyframe slider (not the object itself).
This increases or decreases the timing before the object begins or contin-
ues its movement.
CG INFINITY: CHAPTER TWO 301