ShowBubbleMessage(<-message <-pos <-time <-attachmentType <-attachmentPosition <-messagechannel)

Shows a bubble message. Returns a UID for the bubble message.
message: A string that is the message.
pos: The V2 world postion of the bubble message.
time: Time to live in seconds. If < 0 the bubble message will not close automatically but can be closed with a mouse click. If == 0, the bubble message will not close automatically and must be closed via a script.
attachmentType: 0, 1, 2 for None, Bubbles, Line.
attachmentPosition: 0, 1, 2, 3 for Bottom, Left, Top, Right.
messsageChannel: Then channel to send a message to when the message bubble is closed.