Senior White Two couldn't be bothered to introduce Song Shuhang to the authority of the Ruler of the Netherworld, and he didn't have the energy to personally teach him the various controls of the ruling authority.
So... in a drowsy state, Senior White Two casually created such a foolproof operating interface.
Simple, easy to understand, and very suitable for players like Song Shuhang, who had poor talent in learning magical techniques. With this interface, he didn't need to undergo special training or obtain a certification to manage the Netherworld.
The only downside was that, due to Song Shuhang's current realm, some of the ruling authority had a limit on the number of times it could be used each day.
In addition to the basic management rights on the interface, after Song Shuhang and Fellow Daoist Stone Tablet merged into one, they could also use the 'Three Minutes of True Grit' privilege to forcefully maintain the operation of the Netherworld.