Stacker: Volume Flattening User Names control allows you to set the name for the base face created in Stacker: Volume Flattening control.
Stacker: Volume Flattening User Names Details view has the following options:
General
Control Type: Displays the selected control type.
Definition
Base Face Label: Provides the name for the base face created in Stacker: Volume Flattening control. You can click
  on the right corner of
                        the option and click Publish to publish Base
                        Face Label to the Property Worksheet.