Not sure if you can John. If you can you'll have to be careful as two people would be using the same supply i.e. 16amp and it would be very easy to trip the breaker. Sorry if I'm preaching to the converted. :Blush:
The one Scotjimland shows I have around a 100 of them that I use at work . ten quid each to buy , best I have seen for us is a Y shaped molded lead I will see if I can find something to post on here showing it.