[schferk]

Thank you very much, kinook, I got it.

My error: I had always tried to paste into the "value" part of the URL attributes field (mouse cursor / mouse click in the "value" segment), when I should have pasted into the title part of the URL attributes field (mouse cursor over / mouse click in the "URL" title segment of the URL attributes field when pressing control-v).

Perhaps this is the same with other attributes: When it does not work correctly when you try to paste a value in the value field, try to paste it over the title part before the value field.

This sounds crazy, but it is the solution, all other things being strictly the same.

Incredible.

Thanks a lot!