Press and hold the Power Level button for three seconds to enter the clock setting mode. Enter the time using the number pad.

as per the user manual, I had significantly more than the requisite 10cm spacing on all sides. At this point, I don’t want anything from Samsung. I will take the microwave to the dump (too ...

There are more modes in the app than you can access on the Samsung Combi's manual controls. For instance, it includes 'Grill Combi' (microwave plus grill) and 'Convection Combi' (bake plus roast).