Use the Guides toggle to determine whether object edges and center points will snap to the Guide lines.
Guides Toggle On allows object edges and center points to snap to the Guide lines.Â
Guides Toggle Off allows object edges to be placed without snapping to the Guide lines.
New Guide: Alignment Tab
New Guide From Ruler
New Guide in Relation to an Object: Alignment Tab
New Guide a Specified Distance From an Object: Alignment Tab
Guides and Auto Alignment
Guides Toggle: Editor Default Setting