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.