There's also the ability, as well as with the others to type: /youtube (paste a link from youtube), however a video can not be playing at the time, you can post at the last second of the end of the video and it will register. There're commands too, these include /clear (clears currently playing videos), /seek 00:00 (seeks to a specific time frame to restart simply enter the command /seek without the 00:00), /pause (/stop will do the same), and /play.