What feature allows you to create multiple copies of an object with consistent spacing?

The Transform Each function is a powerful tool in Adobe Illustrator that enables users to create multiple copies of an object while maintaining consistent spacing between them. This feature allows for precise adjustments, such as specifying the exact distance between copies and having control over the rotation and scaling of each instance. By accessing the Transform Each dialog, users can set values for horizontal and vertical shifts to distribute their copies evenly.

In contrast, the Align panel focuses on the positioning and alignment of objects rather than creating multiple duplicates. Pathfinder options deal with combining and manipulating shapes but do not provide the functionality for duplicating and spacing objects. Smart Guides aid in snapping objects into place and aligning them relative to other objects, but they do not facilitate the creation of multiple copies with set spacing. Therefore, the Transform Each function stands out as the suitable choice for duplicating objects with defined spacing consistently.