When an object is being moved a secondary action button will appear on the controller (the button normally used for the Quick Menu). This button can be pressed to make a duplicate of the current selected object or group of objects.
Once a duplicate has been made you can place another duplicate somewhere else by pressing the duplicate button again.
Duplicates can be made when holding shapes with the move tool by laser (great for orthogonal aligned placements) or when grabbing a shape directly with your hands (great for precision on placement and rotation and to add a “human touch” to the position)
The position and rotation of a first duplicate created from a model will serve as the starting point for creating an Array. (Keep the placement button pressed and move you controller in the direction of the array).