And just curious, how old do you think I am?
Judging from your posts and attitude, I'd say 12-14.
As for the level editor thing. It can be done. You'd just have to take a flexible script used for a level editor, make into a D&D action where you would input all of the numbers and variables that you would need.
I hate to break it to you (actually I don't) but I can't think of any level editor that uses one script to perform all required tasks, that statement is either troll or ignorance.
I am making an editor extension though for learning purposes, which when I'm done (could be a while) you can freely use in your games.
Though what Bleed has been telling you over and over again is completely correct. You are the one designing your game, only you know how it works so you can't just ask someone to make an editor for you to plug in when they have no idea of how your game works. There are many ways to design a level editor, you can use fake objects, a grid, arrays storing the positions, etc. You have even more possibilities for the saving/loading format.
You said earlier:
I could make a basic editor where you create levels in a heartbeat
If all you are having trouble with is saving and loading then take a look at examples on file functions to get an understanding of them, then look at level editor examples and see how people are saving and loading. Here are some examples you should look at (found by a simple search):
You'll notice I put Bleed's editor in there. It is excellently made and is full of great features.
The number one thing to do when learning is experiment, if you don't understand how a function works just try it out, you will get results no matter what, when I needed to learn the file functions that's all I did and it didn't take long to figure them out