How do you make a leaderboard in MIT Inventor?

Hi. Can I ask? How to make a leaderboard in MIT Inventor?

What did you do?Do you have any sample data?

Search the community ?

https://community.appinventor.mit.edu/search?q=leader%20board

https://community.appinventor.mit.edu/search?q=score%20board

https://community.appinventor.mit.edu/search?q=high%20score

https://community.appinventor.mit.edu/search?expanded=true&q=top%20ten

i dont have sample data

How will you make a leader board then ?