WYMeditor getting started

Hi,
the WYEditor is exactly what I'm looking for because I dont want to have ANY inline css.

But:

The documentation lets say is ununderstandable :) , at least I dont get it at all. I spend hours on the few lines which is supposed to be the documentatiopn but nevertheless lets be happy that there is something like the WYEditor.

What I'm trying to do is that all the buttoms that you can see after the standard installation (bold, underline, paragraph, bullet points...) get kicked out and that I can define my own buttoms wich refer to my own css (where all classes are defind).
At the moment the standard buttoms create inline css, which I want to avoid completely.

Dont get me wrong, the editor is the best I've seen but why not write an understandable doc that many people can enjoy.

Thanks a lot, maybe you can help me.
Chris