Configuration
This asset comes with the License Manager. You can add it to your world and try it right away, but you must validate your product license with the License Manager before you can publish your world.
UI Configuration
The visual configuration of the Players Board is split across two GameObjects inside the prefab:
Proximity Detector
The Players Board prefab includes a child GameObject called ProximityDetector with a CrZ_ProximityActivator script on it. The script itself is documented on the CrZ Utils page.