You may find the following notes helpful when using Set Driven

Viewing the results in the Graph Editor
In the next steps you'll examine the animation curve resulting from the driven keys you've set. If you are
unfamiliar with animation curves and the Graph Editor, see Lesson 1: Keyframes and the Graph Editor.

To view the set driven key results in the Graph Editor
1. Select the door. To display the animation curve for a driven key in the Graph Editor, you must
select the object containing the driven attribute, not the object containing the driving attribute.

2. Select Window > Animation Editors > Graph Editor.

3. From the Graph Editor, select View > Frame All. The Graph Editor shows the driven keys that link
the door's TranslateY value to the ball's Translate Z value. An example follows:

The column of numbers on the left lists the driven attribute values. The row at the bottom lists
driver attribute values. The animation curve shows the relationship between the values—the
door's Translate Y value rises as the ball's Translate Z value approaches 0.

You can use the Graph Editor to edit the shape of the curve to make the door rise faster, slower,
and higher as the ball approaches it.

Animation Lesson 2: Beyond the lesson

In this lesson you learned how to:

 Set driven keys to link one attribute's values to another.
A driven attribute is not directly affected when you play the animation. It is linked to a driving
attribute's value, not animation time. However, you can use regular animation keys, expressions,
motion paths, or other techniques to animate the driving attributes. This indirectly animates the
driven attribute.

You may find the following notes helpful when using Set Driven Key:
 You can set driven keys to control a driven attribute with multiple driving attributes. For instance,
you can have a muscle bulge when an elbow rotates, and have the bulge increase when the wrist
rotates.