Wayneo, Zark and Retired, many thanks for your time. It is appreciated. I can see the led fine already but I really want a display where, when it's charging, I can just look over and see the input current and the voltage of each cell without having to interact with the device. It's how I have my 250 set up (apart from the input current). Wayneo, you're a star, I've set up a child screen off of the main screen with the toggle and it works. So thank you for the advice. The only problem now is that the screen stays on but also the led is now also permanently on and is blue. I haven't changed any of the led settings so that should indicate it's firing (it clearly isn't) but is there a way that you can think of to either turn it off or have it set to the pulsating red as in the default profile? It's picky I know but I would prefer to keep the led off then have it on for hours at a time.