This is a Spot Light Rig utility that generates a lighting setup to simulate soft shadow lighting. You can use the camera created to "Look through selected" in the viewport to aim your light rig at your subject. All of the rig controls are located under the "rigControls" node in the extra attributes folder of the Attribute Editor.

Update 0.1: Removed global proceedures to save system resources.
Update 0.2: Converted expressions to Nodes/SDK for performance.
Update 0.3: Added controls to adjust light spacing.