Depending which mode is currently active on the screen, the function of the square button will change. The splash screen shown when scrolling through the menu describes the square button function for each mode.
These are as listed below.
|Speed||Start and stop logging|
|Max Speed||Reset max speed value|
|Predictive Lap Timing||Fix the reference lap currently being created|
|Lap Timing||Set a new start/finish line|
|Lap Count||No action|
|Menu||Access the Menu|