Collapse Mode for Forums, Teams, and Chat notifications

I have 30 Teams and a bunch of Users. So when I hear "bling!" notifying me I've got a new something, I have to scroll all the way down, and all the way back up to see what's been yellowed.

I'd like to collapse the categories and have only new (incoming) messages appear under the collapsed category.

In other words, if I'm running in "Collapse Mode" then I only see this in my sidebar:

OPEN FORUMS

PRIVATE TEAMS

DIRECT MESSAGES

Until... voila! A message comes in from Bobby, and the Marketing team posts something. Then I see:

OPEN FORUMS

PRIVATE TEAMS

Marketing Team

DIRECT MESSAGES

Bobby

So I click on Bobby's message, read it, and it "un-yellows" itself. Then I click on Marketing.

While I'm replying to Marketing, I see this (because I've already read Bobby's message)

OPEN FORUMS

PRIVATE TEAMS

Marketing Team

DIRECT MESSAGES

It disappeared again because I'm in Collapse Mode.