I'm useless on computers, jourdain, and couldn't 'do' links. Then someone on here showed me in plain language and it was simple. (it would have to be)
If you look at the top of this page there will be a box with this in it:
http://m.theanswerbank.co.uk/News/Question1460217-2.html
Possibly in white on a black background. Put the arrow on the box and 'left click'. It will turn blue.
Then 'right click' and a box will appear with a few choices including Copy. (point the arrow at copy & left click)
That's now 'stored' until you want to paste it somewhere.
When you want to paste it on AB, click on answer, put the arrow in the 'answer box' and 'right click' again. This time when the box appears it will have 'paste' in the options. (point the arrow and left click and what you copied will appear in the answer box)
^written down, it sounds much more complicated than it is.