When you click on quote, it simply adds it to a list of quotes, then you should see the following at the bottom of the reply box:
"You have selected one or more posts to quote. Quote these posts now or deselect them. "
Clicking the words "Quote these posts now" should add them to the text box and you can enter your reply below, or as s.monkey said, when you click new reply, it will add those quotes automatically.
"You have selected one or more posts to quote. Quote these posts now or deselect them. "
Clicking the words "Quote these posts now" should add them to the text box and you can enter your reply below, or as s.monkey said, when you click new reply, it will add those quotes automatically.