I was able to create a script, what does, what I wanted.

My folder-hierarchy is based on years and monthes.
Means, in a folder like Septembre ALL files are in it.
Including versions (nef and jpgs).
If such a folder is finnishes, this means usually, that all files are in it and all necessary bills are done.
It is nice for me, to know quickly, what files are in such a folder.
Hence I created this script, what runs over all images, and does all information into a new image.
This is done with xaml and finally I have at top this "statistic-file" (hence colled "__stat-folderyear-foldermonth").
If I know go to a folder, I can see, if it has a statistic-file. If yes, then this means for sure, that this folder is finnished, all bills are done and so on. I could go even so far, to count the amount of these bills, but this is not really necessary, hence I did it not. Hmmm, on the other side, would be nice to know for each month ... hmmm, would be easy to implement ... well, maybe for playing

)
I can see quite a lot in such statistic-files for me. And if there is something unusual, I could look into it (for example, if there are a lot of "different files" (mostly I have nefs and jpgs).
And finally, with the search function I can search very easy for all statistic files (search for __stat) or for one specific year (search for "__stat-2015).
Then putted into the Design & Print and I will end with a A4-sheet as pdf with all the statistic, neatly presented on one page of paper.
Not necessary, but nice to have.

One example of two monthes attached. Not perfect, but informative for me.
PS: the only thing, what I still am looking for, is how I can expand all stacks and then toggle (expand) all relattions, so that I am ending with no stacked files (reals stacks and relations-versions). I am trying to do so with sendkeys (Ctrl A, then Ctrl right arrow, then Ctlr Shft q), but it is not that important and has time.