If you want to create a light, such as a flashlight, that is being held by an actor, you do not have to adjust the transform data key after key as the actor moves away. All you need to do is link the spotlight to the flashlight in the actor's hand.
Go to the Scene Manger, click on one idle light under Dir./Spotlight.
In the Stage/Light/Modify page, go to the Light Setting section.
Select Spotlight.
Go to the Linkage section and click the Pick Parent button.
Click on the target object you want the spotlight to link to.
Move the parent of the Spotlight to view the result.