Grouping vs. Parenting

Grouping two or more objects connects those objects with an additional node, called Group(n) (Figure 6.3), which you use when you want to perform an action to both, such as moving them at the same time. (The (n) in Group(n) represents the number of the group node.) Even though the objects are grouped, you can still select one and move or perform an action on it without affecting the other objects in the group. Alternatively, you can select the Group node and have your actions affect the grouped objects as if they were only one object (Figure 6.4).

Figure 6.3. The top node is used to change values of the entire group without changing the current values of the individual objects.