Auto Groups

From ZBrush Info

Auto Groups will create a new group for each separate poly object. The example to the upper right shows what Auto Groups will do. Keep in mind that a separate poly object is not a SubTool but a part of the object that does not share any polygon faces and is self-contained.

Create Auto Groups

1. Press Transform: Frame to be able to see the grouping information.
2. Press Tool: Polygroup: Autogroup.

To Learn About Uv Groups Click Here.

To Learn About Group Visible Click Here.

To Learn About Material Groups Click Here.