I rarely quote the whole of what a person has said so this is what I usually do.
> I press and hold the left button on my mouse and scroll over the text I wish to copy - to highlight it.
> Click the right mouse button and choose copy.
> Move to the edit box where I am writing my reply and click on the speech bubble icon in the toolbar - the one to the right of #.
> This adds [ quote ][ /quote ] to the text and the mouse cursor will be located in the middle eg where the :-) is here [ quote ] :-)[ /quote ]
> This means all I have to do to add the copied text is right click on my mouse and click paste.
>
right click on my mouse and click paste.
If you get stuck let me know.
:-)