Thanks a lot for clarifying.
I am following up on your second point in the second post:
– It is uploading the files into a folder under /uploads depending on the date, right? So an image uploaded in November would be put under /2016/11/… and one in December in /2016/12/…, right? Can I also select just one specific folder? If yes, how?
– The folder is scanned with another tool not included in WordPress and should only contain already approved images. How can I ensure that no unapproved images are saved in the specific upload-folder?
Hope this helps to further explain my requirements.
Thanks a lot for helping out here!