I already explained the process in several posts, and if you want to win 100 STEEM, you can record a video showing the process using your own challenge.

https://steemit.com/steemhomecontest1/@kouba01/create-and-manage-your-own-contest-using-steemhome-mpd7ejb6

The competition is still running for 14 more days, and you can also explore the dashboard section to better understand how everything works.