Thank you for your continued feedback. The feature team is actively working on this highly requested feature. We are testing the first release that will have the ability for meeting hosts to create breakout rooms, assign the users to the rooms and call them back to the main room. Please see our roadmap for current status here: https://www.microsoft.com/microsoft-365/roadmap?filters=Microsoft%20Teams&searchterms=65332.
The ability to delete Bot messages feature has been added to the backlog. Thank you for your feedback!
We’re updating our command library all the time, so keep checking the menu in the command box to see what’s new by typing / or @.