Unique guide and grid layouts can be established on each artboard to help you position objects. Furthermore, you can activate snapping to dynamically align objects to these guides, or to the current artboard and other artboards in the document.
When snapping is active, dynamic guide lines appear when an object is aligned to the edges, corners, or midpoints of the current artboard or other artboard in your document. Any artboard can be a candidate for snapping to.
For more information on guides and snapping, see the Guides, Grids and Snapping topics.
To set an artboard as a snapping candidate: