There are several methods for choosing a group, including selecting the group by name or selecting one of the members of the group.
You can select groups by name at the Select Objects prompt. If the PICKSTYLE system variable is set to 1 or 3 and you select any member of a selectable group, all group members that meet the selection criteria are selected. You can also turn group selection on and off by pressing CTRL+ H or SHIFT+CTRL+A.
All members of selectable groups are also selected when you use object selection cycling (for example, if you want to select an object that lies directly behind another object). Selecting an object that is a member of more than one selectable group selects all the members of all the groups that contain that object. To select groups for editing with grips, use the pointing device to select the group at the Command prompt.