Yes it worked.
No eating of libraries and no bogus libraries – even after loading the libraries automatically. I received the first time the second picture in your
post #78.
One issue I noticed: I could not select or deselect individual custom columns. There were (empty) check marks on the left side, but they did not react whenever I put my cursor onto it and clicked the mouse. I could via the special buttons select or deselect all of them, but I coudln't select individually. When selected all it showed me the status "1" but there were no mark checked and I could not check or deselect them. When I selected several whole *lines* then CALM asked me the correct question, if I would select or deselect these columns, but after an 'OK' there was no change at all.
Anyway: With all customs columns selected, I managed to consolidate my two libraries I am interested in. I am now learning what to do and will inspect the other buttons as now the other two tabs 'metadata tools' and 'library tools' are open for further inspection.
I will come back when I have more questions but also if everything worked fine. But this will not be before Tuesday afternoon or Wednesday, as other work piled up and I have some deadlines to meet.