Creating Leader Lines for DataGroup Annotations

Steps:

1. Turn on Create Leader Line in the Drawing Rule.
2. Set the desired Level and Symbology for the leader line.
3. (Optional) If a terminator or gap is needed on the leader line, create a custom line style and select it for the line style symbology.
4. Save and Update the Drawing Rule.

The line styles 'Leader with Arrow' and 'Leader with Dot' used in the video can be found in the line style resource files found here. They should be placed in the Standards/Symb folder in either the WorkSet, WorkSpace, or your company dataset.

LineStyles_US-Leaders.rsc

LineStyles_NM-Leaders.rsc

Note: The line styles above were designed to work with the drawing annotation scale, so you should set  the Line Style Scale in the Model Properties of the drawing to Annotation Scale. This is typically my default as it works well for centerlines also.