Great how its done, I could watch it now and its a good idea. Thank RPX!!
Oh no, I’ve just come back here to watch the video again and it seems to be gone! Just a big grey rectangle that won’t play. Has it been taken down perhaps?
Sorry about this. It seems I deleted the video 
That was not my intention.
I make a new one asap.
Oh thanks! I think I’ve remembered what you did having spent an hour fiddling about but I’m not entirely sure I’ve done exactly what your old video showed. Would be helpful if you could do another when you get a chance as I’m not the only one who found it a useful and instructive resource.