How to make it so when you get to the end of a level you go to the previous level

Please Help Me!! I need to make it so when you get to the end of a level you go to the previous level.

In the next level behavior, select the name of the previous level.

Or is there a specific way you want to go to the previous level?

So there is a level select, but I’m making separate level selects for different levels. To make it easier, just take a look. http://flowlab.io/game/view/1134302

Where is the separate level select?