I always run with Settings, Sensors, Orientation, Use true bearing set to OFF (unchecked), for magnetic bearings etc, as we are using this for aviation. I think that the course on the Course Bearing Line is still in true and not in magnetic.
By the way, the course bearing line is the single most useful tool in Locus, at least for us! I will find a location, center it, then tell my pilot the course and distance ("turn right heading 230, we are 12 miles from xxxxx"). I have been subtracting the 12 degree variation to get it right.