Ok. I've taken this from the sticky in the Psychology forum: I'll work from this since it's already printed out here.

You need 2 windows or screens open for this, one being your chat room, the other being the page you have "this" information on, from which you will copy.

So I want to post into chat this: 1) ALL OR NOTHING THINKING
I click on the screen where I have it in text.
Highlight this : 1) ALL OR NOTHING THINKING
Click "CTL C" for copy (control/CTRL key and the letter "c")
Then click on the chat window.
Now click the chat text window so your cursor is blinking on the text line where you would normally type your reply.
Next, click "CTL V" for paste. That brings up the "url link" window. You want to put your text into that.
And click "CTL V" again to paste it into that little link window. (First ctl v brings up window, second one pastes it)
Now you can hit enter and it will post it in chat.

IF you use the SEND button in chat, then there's a different sequence requiring an extra step. I've done it in chat and it always messed me up But there is another way than the above.

I always pasted my desired text into a PM here, as well as having it on my computer in a word procssor document. That way, if my computer crashes, I can use ANY computer and pull the data from the PM once I'm here for chat. You can pull from the PM, if you wish, having 2 windows open for PC.