Big guy if you can't do it by right clicking highlighted text and selecting copy then right clicking again in the reply box and hitting paste, then try selecting the text you want to copy by left clicking and dragging across the text. Then hold down the [ctrl] button and press the letter 'C' then let go. Then go to the reply box and hold the [ctrl] button down again and press the letter 'V' then let go. Your text should now be pasted.