(In reply to Rich Caloggero from comment #6)
I am trying to create a mailinglist. The new entry should hold multiple eMail addresses, and not surprisingly, they are most likely going to be ones already in the addressbook. So then why can't I simply select one of these from a list when creating the entry?
Hey Rich, very sorry for the inconvenience wrt creating mailing lists. We've been working hard to fix as many address book problems as possible. Unfortunately, some problems are still there. Notably, using keyboard only, you cannot create a new address book nor a new mailing list yet. Will fix this asap, but maybe in a point release. It's a bit trickier when it involves new strings in the UI as we're past string freeze.
Bug 1751282 - Creating a new address book or mailing list is not keyboard accessible in the new AB
As for editing a mailing list and adding existing addresses, this is possible with keyboard-only.
In Beta 102.0b8, navigate to directory pane and select the mailing there, then context menu > Properties.
In Daily 103.0a1 (2022-06-22), you can also select a mailing list in the list of contacts and edit it from there via pressing tab until reaching the
Edit button in the display pane. Unfortunately, this will only land in a point release shortly after 102.0 release.
Bug 1774096 - Mailing list items in contacts list show up empty in view pane and are not editable (nor exportable)
The good news is that in a number of areas of the app, we've made improvements to accessibility.