You've just made my day and saved me hours of work. Many thanks :-)
Just a couple of quick question. Having had a quick look at it, I see the connect & disconnect options, rather than Download, Upload so I assume that it's basically a "live" connection - i.e. that when you make a change in the contral panel, it pushes that change immediately to the Duo - is that right? Also, I see the options to save and load to a file - which is what I need as I have to swap my Duo later this week for a new one. If I save the current config to a file, swap the Duo's, connect to the new one, and open the config file, does opening the file whilst connected write all of the parameters to the file?