You can assign new models.
1. Right-click on the object and then on Assignments.
2. Click on New.
3. Enable the New Model Option button. The model types that can be assigned to the selected model in compliance with the method are available for selection.
4. Select the desired model type.
5. Choose Continue.
6. Select the group in which you want to save the model.
7. Click on Finish.
The new model is created, opened, and given the name of the object to which it was assigned.