This was so, instructive it all suddenly became clear to me and it is therefore not difficult at all. I only had two more questions. Can I e-mail it somewhere? Because I don't want your comments to be filled with my questions. :) Thanks again for taking the time and effort to include this Tutorial, I really appreciate it! :) I am genuinely very happy that you have incorporated my previous questions so extensively in an extra Tutorial. And I hope this will help other people too.