Not really, since the best person to write it would be CCAdmin but we are not allowing him away from his coding so he can get some more plugins and the screen editor completed (then the syntax manual becomes redundant).
I put a small "blurb" of what I know in this thread;
directory on your computer (or whatever drive you installed it to).
If those don't help get you started or completely confused, ask away here and we'll be glad to answer any questions you may have. We'll share what we've learned by plugging away ourselves. Remember though the user screens we write are not official CC2 screens.
But half the fun is banging your head on the keyboard, to really get that sense of accomplishment, when your custom designed screen that no-one else has, works!
I'll post some more info on sample screens to help if you would like. Any particular type of screen you would like to start with?