[Pajamaman]

Yes, CC occurred to me.

I will make a decision about the best way to organize books.

I will either find a simple, elegant explorer type solution with a good Search function, or restructure my messy folder structure, or go with a dedicated book organizer like CC.

But the Onyx library is dead to me. It's very poor and very buggy, not at all suited to large collections and doesn't accommodate multiple readers.

I might even say to hell with the Onyx UI and install Relaunchx.