I have a ergo k860 and a mx vertical that I use between 3 devices, 2 of them are PC and the other is Samsung Dex. Flow doesn't work on the PC due to unresolvable firewall issues. I would love to have some feature to sync the mouse and keyboard up to function as a paired unit as both use the same dongle already. the keyboard has the PC1-3 buttons in a easy area but the mouse requires me to flip it. The feature would change both mouse and keyboard to whatever PC I select via the keyboard (or main unit if you want is more dynamic), for example if I'm working on PC1 and i press PC3 on keyboard I would prefer the mouse to swap to PC3 as well