Open Tab "Addressbook" in Thunderbird
(Focus is on "All Address Books")
Enter an E-Mail-Address into search field
-->
E.g. 10 entries (of the same E-Mail-Address) are listed
By "Select columns to display" the column "Address Book" can be selected and we can see in which adress-books the given E-Mail-Address occurs.
Wanted:
The menu of "Select columns to display" should also have an entry "Lists", so that also the List/s (inside the address books) is/are shown, which contain/s the given E-Mail-Address.