I have MX Keys and MX Master 3 and I would like to switch computers with a global button, rather than having to press the button separately on the keyboard and the (very awkward) button on the mouse.

Is this possible?

Also, on ALL applications, horizontal scroll doesn't work - this is one of the key features I bought the Mx Master 3 for, so this is quite disappointing. I'm using Windows 10.

If you have any ideas for fixing these issues, I would be immensely grateful.