Watch several streams at once
Paste YouTube links (youtube.com/watch?v=…, youtu.be/…, /live/… or a video ID) and Twitch channels (twitch.tv/name or twitch:name). Mix them freely, up to 12.
Move a window by dragging its title bar.
Resize from any edge or corner. Hold Shift to keep 16:9.
Double-click a title bar to maximise it, Esc to restore.
Grid / Focus tidy everything up in one click.