To Create a Point Pattern with Datum Points
1. Create a datum point or a datum point feature at the location you want to place the pattern members.
2. Select the feature to be patterned and click > 
Pattern. The Pattern tab opens.
Pattern. The Pattern tab opens.3. Under Type, select 
Point. The Point pattern options appear.
Point. The Point pattern options appear.4. To use points from a datum point feature to create the pattern, click 
From Datum Point.
From Datum Point.5. To define pattern member placement, make sure the Reference collector is active, and select a datum point or datum point feature.
6. Optionally, to align the pattern members with the leader by using an origin different from the default origin, click the Use alternate origin collector, and then select a datum point, coordinate system, curve end, or vertex. The default origin is located at the center of an imaginary bounding box around the pattern leader geometry.
7. Optionally, set a parameter on the Options tab:
◦ Regeneration option—Reduces regeneration time by selecting a more restrictive regeneration option, depending on the complexity of the pattern:
▪ Identical—All the pattern members are identical in size, are placed on the same surface, and do not intersect each other or part boundaries.
▪ Variable—The pattern members can vary in size, or be placed on different surfaces, but they cannot intersect each other or part boundaries.
▪ General—There are no pattern member restrictions.
8. Click 
OK.
OK.