[cooldavidt]

Originally Posted by DNSB

Have you done any internet searches on how to change permissions? One example is Change permissions for files, folders, or disks on Mac. This link is for Mojave but pretty much identical for High Sierra and Catalina.

Good morning David
I have done an internet search.
the 'custom access' is not included in the types of info you are expected to find in Get Info.

I suspect in is KOBO OS rejecting the attempt to load non KOBO books into their ereader.

I suspect the Calibre patches in the Plugins are not working for me.