The FLOW feature is useless because it cannot work with 3prd party bluetooth/wireless keyboard. And I have to use another application named : "Barrier" to make it tick. Because "Barrier" can make mouse & keyboard move seemlessly between PCs. I spent 100$ to buy MX Master 3, but it is use less. I wish FLOW could work with 3prd party keyboard. I'm thinking of selling this mouse to another person because I cannot use FLOW with my own Keyboard.