A
750 version
s_left 	s_right t_bottom t_top
0   	10  	0	125	// comment: autopilot display: heading 100
10   	18  	0	125	// comment: autopilot display: heading 10
18   	29		0	125	// comment: autopilot display: heading 1
 
behavior:
- Indicates magnetic heading selected with heading select (SEL) knob if localizer has not been captured. 
- Indicates localizer course after localizer capture.