Final Fantasy VI Advance Editor

Is there a simple way to describe to me how to just create my own editor. Trying to do a well thought out hack with text documents and a hex editor seem rather primitive. I have just learned how to hex edit, and have no idea how to program or create a utility, but would like to learn if it is simple enough to grasp.

You have to learn how to program. There are several concept to learn (functions, methods, data types, ''for'' loop, conditions, etc...) but you can learn those while starting to program simple applications or console programs. You'll have to select a programming language also, and for make an application such as an ROM editor, Winforms application in C# let you drag and drop your components on your form, so it's sort of more user-friendly in a way. Now there are other alternatives but the best thing you could do is look for a book online (there are numerous free) about the language of your choice with exercices and look at some online programming tutorials.