There is no OOB way to do this in ServiceNow.
Next to that: why are you posting the same question in the same forum twice, using 2 accounts? You are wasting time of people trying to help you and don't know what solution was already provided.
https://www.servicenow.com/community/developer-forum/i-want-to-display-the-hierarchical-structure-of...
Please mark any helpful or correct solutions as such. That helps others find their solutions.
Mark
