@Kovid
2) please forget this one. My fault. As I recognize now, that was a mistake within that library. (PDF-Dokument, first page blank ...). Seems, I will have to validate this library. Sorry for this.
3.b) The last yellow marked librara called "calibretest-embroiderydb" is called actual "CalibreTest-EmbroideryDB". I need to check this once more. Maybe this have to do with the first beta. Maybe that will only change, if I delete all users with access to the library. I will come back on this after a new test later today.
3.c) Maybe a bad description from my side. I meant as additional (path) info within GUI (pic2) where I set the library access for a user, not Web-GUI.
4. I will work around that. The question came up because this file is the only one I have with readable PW's in a DB.
5. Then I need to deal with it