Multi-window chat is in testing. I hope to have great news regarding rollout to the public rings soon.
We are working to ensure that multi-window and other future multi-window experiences are of the highest quality when they release.
I love trying different vendors. I used Chime and it chimed in to a nicety :) . Sameness is boredom :
). Can we integrate with others like Slack, Chime etc ... :)