to be honest, that part (the sections) is the easiest to deal with.
It would be much helpful to be aided on the commands, and it could be done with one of the customizable free text editors where you can define your own syntax.
I mean, creating a new "module" to instruct the editor about the syntax of the available commands.
It's not even a programmer's job, because a module is a text file, a descriptor, and in the end you get all the other powerful features of the editor.
I know for sure a couple of editors allowing this are PSPad (the one i use regularly) and Notepad++.
That's how i'd go, but i don't have the time to do it.