ddAction

repairexample.sqf

while {true} do {
    sleep 1;
    {
        if ((typeOf _x) in ["B_Truck_01_Repair_F"]) then {
            if (!(_x getVariable ["isSetup", false])) then {
                _x setVariable ["isSetup", true];

                //here's where you put your code:
                _x addAction ["Repair Example", {(_this select 0) setDamage 0;}];
            };
        };
    } forEach vehicles;
};