Use the Blend Shape editor
 
 
 

To use the Blend Shape editor

  1. Select Window > Animation Editors > Blend Shape.

    The Blend Shape editor appears. The editor includes a section for each blend shape deformer in your scene.

  2. Click on the name of the blend shape deformer you want to control (default name: blendShapen).

    The editor expands to show controls for the selected blend shape deformer.

    For more information, see Blend Shape Editor.