About Groups

Groups provide an easy way to combine several objects that you need to manipulate as a unit. By default, selecting any member of a group selects all the objects in that group, and you can move, copy, rotate, and modify groups just as you can with individual objects. After you are done with a group, it is just as easy to ungroup the objects. The commands are GROUP and UNGROUP.

Note: Avoid creating large groups containing hundreds or thousands of objects. A large group significantly degrades performance.