[bluepeter]

As I assume most users do, I use collections to organise the books on my Kobo e-readers. For example, fiction is organised into Unread, Partly Read, Read and Abandoned. Books are moved between collections as I read them. I have five Kobo devices in use (Clara HD, 2 x Clara 2E, Clara Colour and Mini). Synchronisation of collections via Kobo's servers isn't perfect, but it works reasonably well for books bought from Kobo.

The problem comes with books that I've loaded onto the e-readers from Calibre. The allocation and reallocation of these has to be done manually, and this can be tedious.

Is there any easy way of setting the allocation of books to collections in Calibre, and for Calibre to impose that allocation (or reallocation) on Kobo e-readers when they're connected?

I know how to create a suitable custom column in Calibre, but don't know how to make this control the allocation on the e-readers - or even if it's at all relevant.