Sadly the in-game level editor to make levels and game modes might not happen.
i have been putting all of my time into trying to get it to work however i'm a novice of code and blueprints so for now i can not make it, i will continue to try to get it working for you all :).
For now i'm going to add an in game timer so you can track how fast you can finish a level, add split-screen and review the code.