[chaley]

Originally Posted by CC-Peter

Hello,
I read your description how to add custom columns to grouping drawer in calibre companion. By the way: great app, that prevents to have two libriaries in parallel, one in calibre and another one in your reader app. It worked as described.

Thanks for the kind words.

Database has been reorganized and the new "Name" appears in grouping drawer. But unfortunately the content of this column from calibre (it´s a yes/no-parameter) does not appear. The custom column is visible in the datails of each book (green arrow for "yes" and no entry for "no") but in the grouping drawer just the name appears, tapping it does not show e.g. Yes<45>, NO<15>.

I assume you are running CC V3.4.4?

Almost certainly you have not typed the correct lookup name of the yes/no column into CC. What you types should look something like "#mycolumn/Column name". The #mycolumn must be exactly the same as you see in calibre if you hover your mouse pointer over the column heading. The "/Column name" is optional.

The next release will show a list of columns where you choose the ones you want, eliminating the problem of typographical errors.

Or do I understand the intent of adding custom columns completely wrong. What I want is to bring a user defined Yes/No-parameter from calibre to CC to group on it.

It seems that you correctly understand what should happen, and what will happen when the lookup name is entered correctly.

CC for itself contains a read-flag, but this will not be transferred back to calibre. So I generated "Read Yes/No" in calibre for grouping.

This I do not understand. CC can sync its read information back to a calibre yes/no column, and its read date information back to a calibre date column. In CC's settings, scroll down until you see the "Marking Books Read" section. There are two settings there, one for the read information and one for the read date information. You enter the lookup name of the calibre custom yes/no column into one setting and the lookup name of the calibre custom date column into the other setting.