Model-Based Definition > Model-Based Definition > Annotation Features > About Detail Options > Detail Options Specific to 3D Mode > annotation_snap_to_guide_range
  
annotation_snap_to_guide_range
Set the angle range for the automatic snapping of an annotation leader to a normal or tangent guide, while moving the annotation. Set to off to disable the automatic snapping. The default is 5. The optional values are 1,2,3, and 4.