Sorry I just understand the question you asked. I was busy, so not focused. Now I answer back your question.
(1) The links of afrog and oliverschmid link to german tutorials.Are you sure you need them?
I sure need that. The last sentence of my post, to forward messages from your post.
(2) I don't speak you language so I used google-translator and that might include mistakes.So I'm not sure if there is any sentence that says the payout goes to the program's developer?
I say there, that the use of this feature is not paid.
Please criticize if there is a mistake. Please guidance our teacher @chriddi.