Quotes from the manual:
Brightness switch for red, green and white wingtip and tail navigation lights. This is a four position switch that can be cycled with each left button mouse click on the switch. Possible settings include off, 10%, 30% and 100% [L + RALT]. The fourth “АНО КОД” position (right mouse click) is a momentary position and is used to send visual „coded‟ signals (Morse code for example) to other aircraft and ground units in the case of radio communication failure. [L + LALT]. If in a move from Sonoma to
"СТРОЕВ. ОГНИ” (Formation lights) switch. Formation lights are low-intensity light-strips located on the back of the fuselage and the wings. The switch has four positions that include off and three levels of brightness (10%, 30% and 100%). Formation lights can only be seen at close range, so they are often used for formation flying at night without being too visible to enemy units. [J + RCTRL]
So I can understand that there is two sets of lights one for the Navigation lights and another for the Formation lights?
I’m asking this because I couldn’t find the difference …