Group functionality has been streamlined in AutoCAD 2012 making it easier to use. You can access the new Group tools from the Group panel on the Home ribbon tab.
The Group tool replaces the traditional Object Grouping dialog box with a simple prompt to select objects. You have the option of providing a group name and description. The Ungroup tool ungroups the objects. You can use the Edit Group tool to add and remove objects or to rename the group. These tools are also available from the right-click menu when a group is selected.
A Group Selection toggle allows you to control whether objects are selected individually or as a group.
Expanding the Group panel provides access to additional Group tools. The Group Bound Box controls how groups are displayed. When it’s enabled, AutoCAD displays a single grip and a bounding box around the group. The Named Groups tool displays the classic Object Grouping dialog box.
The Purge tool has been updated to support the purging of groups that contain no objects.