Ability to empty a team's chat window

It would be nice to be able to delete all messages from a team's chat window (reset the chat).

But why? Not everyone would like that to happen D:

It's not possible so that there's evidence available in case anything toxic happens
But you remove the chat window via settings any time
Even after the tmt begins

I guess you should try this

1. Disable the chat
2. Then enable it again

That may work @pascalg