How to do camera roaming in 3d max, is there any specific operation?

1. Select a camera, click Set Key Point, and press the key icon to record the current position.

2. Slide the head to frame 25, move the camera, and click the key icon.

3. Slide the head to the 5th frame, rotate the camera, and click the key icon.

4. Slide the head to frame 75, move the camera, and click the key icon.

5. Slide the head to the 1th frame, move and rotate the camera, and click the key icon.