Target wind angle from polar
When the chartplotter’s Sail performance is set to Polar and the wind angle is within 30° of the polar target wind angle, the vessel will automatically steer towards the relevant TWA based on current True Wind Speed (TWS) for vessel speed, as specified in your polar table. The upwind or downwind, port or starboard target wind angle is used, depending on which is closest to the current wind angle.
Steer to windPolarThe system tries to use the closest target wind angle to the actual wind angle. If the target wind angle is more than plus or minus 30° from the actual wind angle, the mode cannot be enabled.
You can adjust the target wind angle in 1° increments using the relevant buttons.
If the wind shifts, or the wind angle is changed by more than 30° from the polar target, the system will revert to the previously used mode (TWA or AWA).

Wind angle.
Target wind angle.
Destination.
Course Over Ground (COG).
Layline (with Adjust for tides enabled).