Animation - Unity Animation
Note
You can preview your animations in Unity’s game view.
Unity has it’s own animation system that you can use to animate your scenery inside of your CAD and then import the key frames into the engine.
Unity’s current animation system is designed around character animations with a state system more then it is quick and simple key framed animations, so make sure you use the legacy animation system.
Setup Legacy Animation
Click on your scenery asset in Unity’s project panel
In the inspector go to the Rig tab
Change the Animation Type to Legacy
Head over to the animation tab and configure the animation however you want it to play
Click Apply at the bottom of the import settings