To add shapes to the Character face Shapes list:
- Load a head model with shapes or cluster shapes. 
- Add a Character Asset to the scene. See Adding a Character Face.  
- In the Target Models area of the Character Face settings, switch to the Shapes Mapping pane. 
- Select the head model and Alt-drag it from the Viewer window into the Models With Shapes menu. All of the model‘s shapes display in the Shapes list.  
- Click Go to Rest to switch the selected model to its rest pose. 
To remove a model:
- Select the model to remove from the Models With Shapes menu and click the Remove button. 
To rename models:
- Select the model in the Models With Shapes menu and click the Rename button. Type the new name and press Enter.