I just tried your plugin on my PB Touch HD 3 (PB632) and it works

. Thank you for all your work!
Is it possible to extract the read status of the books on my device and import them to calibre? If I understood it correctly, you've based this plugin on kobo utilities, which seems to be able to do that.
I'm familiar with setting up custom columns, although I'm not sure what the lookup name would be here.