As a fellow mouse keys enthusiast, I recommend checking out the extra configuration that available if you open up the actual firmware (if you’re looking for som

As a fellow mouse keys enthusiast, I recommend checking out the extra configuration that available if you open up the actual firmware (if you’re looking for some fiddling to do). MK_COMBINED, for example, allows you to use the basic mouse acceleration and then clamp the speed to specified levels if required (for detail work, jumping monitors, etc.). You have to program, compile, and flash the firmware the “hard” way to do this, but the EZ’s configurator lets you download your current source as a great starting place.