In Sense 4.0, default mode of Easy AR Motion Tracker is Medium(focus), and external settings are not supported.
In Sense 4.1, default mode of Easy AR Motion Tracker is Continousauto(auto focus), and external settings are not supported.
In Sense 4.2, the default mode of Easy AR Motion Tracker is Continousauto(auto focus), "setFocusMode" allows setting the focus mode
https://help.easyar.cn/EasyAR%20Sense/v4_2/ApiReference/MotionTrackerCameraDevice.html
Galaxy A7 supports Continousauto(auto focus).