Cool, thanx.
I did not see in the manual this or the --start-in-tray switches. What other switches are there?
Are files in user profile important? The idea isla having a USB hard disk with both Calibre anda the library. When moving to another PC the drive letter mayor change (library location swith to rescue

), but what about files in AppData? Do I need to copy them manually or are irrelevant for Calibre functionality?
Thanks again for such quick support!!