Assets with partial or fully identical sets of published names can be swapped while maintaining the values of the matching published attributes. This allows you to quickly re-purpose scenes or swap different assets in and out of your current scene.
To swap the police car for a fire truck
If you didn’t start at Lesson 1, navigate to GettingStartedMaya2012LessonData\Assets\assets and select the file Firetruck_templated.mb.
Maya imports the fire truck into your scene.
The fire truck jumps to the police car’s position so that they overlap. If you play the animation now, the fire truck follows the police car’s previous path and then stops outside the apartment building and opens its doors. The police car remains stationary.