I am inquiring about this particular model of OCT. When I switch from OD to OS, the automatic chin rest sensor will not detect the patient. It mostly happens with patients who are unable to stick their chin out to touch the sensor, or patients who have flat chins. I could override this with other models I have used just by simply clicking on OS. This model does not allow it. I have managed to acquire scans by putting my finger on the sensor and the patient puts their chin on my finger. But this is not acceptable, especially during Covid-19. Has anyone had experience with this model and can help me figure this out?