Ok thanks!! - It wasn’t initially clear that tapping the “System Overview” GRAPHs actually gave you another menu (maybe add some text “Tap here for submenu”); this would differentiate the submenu below the graphs from the actual list below it, which looks like the “System Menu”.
The LED on/off schedule is probbaly useful for some, but for me a simple LED slider (either on ON or OFF) is more useful.
However I eventually discovered that the little blue LED symbol is actually also a menu, I think that turns it off completely (seems to) which is exactly what I was after - thanks again, although I think the route to get there is a wee bit confusing / would benefit from a few well-placed ‘signs’ i.e. text to help navigate.
Minor note - typo as shown. Actually both of them should read Turn nor Trun.