Workaround:
Assign wheel brake to left toe brake, then edit ask21_basics.lua in the airplane directory to contain:
startup_running = find_dataref("sim/operation/prefs/startup_running")
battery_on = find_dataref("sim/cockpit2/electrical/battery_on[0]")
avionics_power_on = find_dataref("sim/cockpit2/switches/avionics_power_on")
speedbrake_ratio = find_dataref("sim/cockpit2/controls/speedbrake_ratio")
left_brake_ratio = find_dataref("sim/cockpit2/controls/left_brake_ratio")
parking_brake_ratio = find_dataref("sim/cockpit2/controls/parking_brake_ratio")
radio_altimeter_height_ft_pilot = find_dataref("sim/cockpit2/gauges/indicators/radio_altimeter_height_ft_pilot")
actual_parking_brake_ratio = 0
actual_speedbrake_ratio = 0
--------------------------------- DO THIS EACH FLIGHT START ---------------------------------
function flight_start()
if startup_running == 1 then
battery_on = 1
avionics_power_on = 1
parking_brake_ratio = 1
speedbrake_ratio = 1
left_brake_ratio = 1
else
battery_on = 0
avionics_power_on = 0
parking_brake_ratio = 1
speedbrake_ratio = 1
left_brake_ratio = 1
end
-- IF START IS NOT ON THE GROUND THEN SPOILERS AND BRAKES OFF
if radio_altimeter_height_ft_pilot > 10 then
parking_brake_ratio = 0
speedbrake_ratio = 0
left_brake_ratio = 0
end
end
--------------------------------- REGULAR RUNTIME ---------------------------------
function after_physics()
parking_brake_ratio = left_brake_ratio
end