Here’s some tips and tricks about the Chat window will show a combined view of all the channel you are connected to.
When you long press a chat message it will show a pop-up window with buttons that have certain actions. These buttons can be configured in the Chat action settings.
On that settings screen you can also enabled that pressing a username will result in @username being added to the chat box.
The chatbox will only send messages to the main Twitch channel you are connected to. For now there’s no support to send messages on Kick.
There also is an option to join 2 Twitch channels simultaneously. This can be useful when you are co-streaming and want to see both channels simultaneously.
In the Connections screen, on the Twitch card press the Alt channel button and check Show both main and alt channel. To reset back to one channel afterwards you can press the Main channel button.