Witajśo k dodankam Thunderbird.
Pśidajśo pśidatne funkcije a stile, aby Thunderbird pó swójich pótrěbnosćach pśiměrił.
ZacyniśWó toś tom dodanku
To add the column to a mail folder, click on the columns icon on the top right of the mail list and select "Multiselect". The checkbox column will show up on the left. You can then drag the checkbox column to reorder.