If I'd known about it earlier ...
But THAT detail is not visible on the HAK5 Homepage!
Thank you for your help and your answer!
Any other solutions, tips or tutorials from other readers ???
BTW: Question to the OS-Writer: Why is the Ducky on this easy way detectable ???
I think "MASS STORAGE DEVICE" is a good idea or for editing a simple "name-editor".
I found a lot of "stealth-solutions" but at the end you can simple read "HID Keyboard and MSC"
Peter