Question about Group Message Inboxes (e.g. trust_level_2)

I found a related thread here:

Ok, so here’s what I did that created an issue or at least something I’m trying to understand:

I went to Groups > Trust Level 2 > Message and sent a message to the group.

However, it seems this added a new group inbox for all 80+ members of the Trust Level 2 group (pathetic numbers, I know :smile:). Even after deleting the message, I impersonated a TL2 test user and saw that the group inbox (e.g. trust_level_2) still shows up in their Messages UI (even though messages is empty/deleted):

Questions:

  1. How can I revert this so that it goes beck to only showing the single “Inbox” under messages?
  2. Will this group inbox now always appear for all TL2 members even though empty?
  3. Can admins or users configure things so that these group inboxes don’t show up permanently?
  4. Can these group inboxes be nested under the main Inbox?

Trying to prevent clutter or confusion for group members.

Thanks!