In this tutorial you find out how easy it is to use this controller.  This is a simple example

that can be used in many different ways.  You can use it for camera shakes, noise, jitter motion, ect...

Step 1.  In the top viewport create the following

Shape circle with a Radius of 50. 

Teapot with a Radius of 5.  The last thing to create is a helper object. 

Create a point with a size of 25

Step 2.  Select the Teapot and use the Align tool to make sure the Teapot matches

where the Dummy Object is in space. X,Y,Z

Step 3.  Now select the Teapot and use the Select and Link tool.  This will create a Parent

Child relationship with the Teapot being a Child of the Point Helper.  So parent the teapot to the Point Helper.

If you did that correct, the teapot will move along with the Point Helper if you move it.

Step 4.  Now that you have the Teapot as a Child.  Select the Point Helper and go to the

Motion Panel.  Select the Position transform and click the ? button to access the controller menu.

Assign the Path Constraint controller.

Step 5.  Now in the motion panel you'll see down below the Path Parameters.  Click the 

Add Path button and then select in the viewport the Circle Shape.  Make sure

down below you CHECK the Follow checkbox.

Step 6.  Next if you hit the play back button on your timeline you'll see the animation.

The teapot goes around the circle as expected.  Now we are going to add an obstacle.

Drag out a sphere primitive in the top viewport like the picture.  Make the radius 15 units.

Step 7. Now when you play the animation you will see that the teapot goes right through the sphere.

Our goal is to use the Motion Capture Utility to animation the Teapots jump.  This will introduce

you to the MoCap function in 3dsmax which can be very useful.

Step 8.  Now select the teapot and go to the Motion panel.  Click on the Position and then the ?

button.  Choose from the controller list Postion Motion Capture.

Step 9. Next when the choose device panel appears choose Mouse Input.  Also click on

the Z Position.  Then set the Horizontal scale to .2.  You might have to adjust that later.

This means now when you use the MoCap utility and you move your mouse side to side,

the Z position on the teapot will be affected.  The scale value controls the sensitivity of 

the motion during recording. 

Step 10. Now the fun part.  Go to the utility panel and choose Motion Capture.

You should see the Teapot\Postion like in the image below.  Select the postion and

it turns red.  You have the "Start", "Stop" & "Test" functions.  Click the test button.

When you move your mouse side to side the Teapot should move in Z space.

Step 11. Last thing.  Clilck the start button and animation the Teapot's jump over the sphere.

You'll notice that the timeline starts to play and it is recording your mouse movements.

Simple but opens up a lot of possibilities.