These represent the status of all 32 GROUPs in the clock. If the Group is Active then a dot appears for that group. The top dot is Group 1 and the next one is Group 2 etc. So in the screens below on can see that group 1 is ON Group 2 is off, 3 On, 4 OFF and Groups 5 & 6 ON, Groups 7-14 OFF, Group 16 ON, Groups 17-31 OFF and Group 32 ON.
Note: As of version once a Momentary Group has been Activated the Dot will turn on but never turn off, even if scrolled Down on that group. As of version 5.46 the Dots do not show for Momentary Groups. It may change in the future.