Hello; I am trying to create a group email/mailing list. All of the contacts exist in my address book. When at the "to" line in email header nothing transfers. I tried to make a "new list" but it only offers space for 6; I need 10.

I need a solution to setting-up a group email which will be needed frequently. I followed the instructions on the Mozilla help page but it has content which doesn't mesh with Thunderbird (latest version) such as there being no "mail groups" when going file > new > ???? I have done this successfully on Outlook and Safari, but no luck on Thunderbird.

Thanks in advance.