Hey team, great job on the update. I believe a lot of people including myself found that the utility button directly behind the scroll wheel (MX Master 3) is unable to be mapped to the "look up" functionality on Mac. The 'Look Up' functionality that was previously available on the old Logi Options allows us to pull up Apple's native dictionary whenever the cursor hovered above a word. This is super helpful in the previous generations and we'd love to see it again on the new Logi Options. Thanks team!