Question about Logitech MX Keys S

- Activating / deactivating the numeric keypad: to do this, press the button with the lock above the "7" on the numeric keypad

-@: Logitech has done something really stupid here and put the special symbols (which are generated together with AltGr) in small circles so that they are so small that you can hardly read them. Logitech has also invented its own nomenclature for the keys to the left and right of the space bar, apparently to write the Windows and Apple nomenclature both on the same key. Terrible! - to your question: press "cmd / alt gr" (to the right of the space bar) and the "2" key (not on the numeric keypad) at the same time. Then this is what comes out: @

That looks like Windows. Mac works normally. Option (bathtub key) plus "G". Also under Mac there is the option to set the keyboard layout to CH/D under "Input source" in the system settings under "Keyboard". This must be added manually using the "+" button. Then all characters are in the usual place. This should be similarly complicated under Windows.