I'm not sure what you mean by leaderboard, but you can add custom metrics to the smart dashboard and sort by that if this is what you're looking for

Thanks for your further explanation!
that’s exactly what I’m looking for.
Some links on how to create that?!

Click the little cogwheel on the top right as shown in the screenshot. It will open a menu and one of the options is to add custom metrics 🙂

Thanks a lot, I didn’t see that!