2.2.6-22 Grouping Elements

Users should be allowed to designate a group of elements to which graphic editing operations will be applied in common.

Additional Information:
For example, a user might carefully position two elements with respect to each other, and then wish to move both of them together while preserving their relative positions. Grouping elements might be a temporary action, intended for just a few successive editing operations, or it might be specified more permanently via some sort of "make group" command.