To Create a Rigid Body
1. Click Rigid Body Definition. The Animation Rigid Bodies dialog box opens.
2. Click New. The Rigid Body Definition dialog box opens.
3. Accept the default name or type a name for the new rigid body.
4. Select parts to add to the rigid body. The Number of parts count is updated as rigid bodies are added.
5. Click OK. The Animation Rigid Bodies dialog box opens with the new rigid body included in the list.