In this tutorial, we show you how to create a basic prop or QUEST counter device using a basic Verse script. This has a wide range of applications and can be easily modified to another game. There is another way of doing this using tags, but this way can be just as fast and effective.
https://dev.epicgames.com/community/learning/tutorials/kq6e/fortnite-how-to-make-a-simple-prop-or-quest-counter-in-uefn