Sorry to be late to answer, i was waiting if a german speaking was answering...

As i don't speak german (really bad german!) and google translation is not good for german...

You mean maybe an possibility to add event with a xml file ?
Or i'm mistaken...

Merci Marc!
Je n'étais pas sur d'avoir compris totalement, aussi en raison du "xml" (qui n'est pas le format le plus approprié pour de import/export d'information)

So, for importation of events, this is not in the near future developpement, but i think later, it could possible to think of something as import in csv format, some events from a table file.
But to make a study for such a feature, examples from different users could be useful (for example, import from Google agenda, ical, other joomla extension, etc...)