I'm pretty sure you can not copy/paste straight into chat in-game!
I have yet to test it and I currently can't while I'm at school...
I was pondering if their is an addon that would allow me to copy soemthing from notepad, straight into the text box?
My character is writing a Manifesto in-game, and I would love to be able to copy/paste onto every piece of paper.. Instead of having to actually type my multi-line book