allow mx master's "multiple device switching" button to be remapped onto a more convenient button. not all device's support flow and even if they do they may not be on the same network. allow users to have the OPTION to map the bottom button onto a more accessable button would be ideal one of the buttons. please don't make this a "new feature" only available on new mice. just update logitech options

it would also be nice if you let the older mx master use logitech flow and would show you don't like creating e-waste.