No , but by default, the whole flight uses an autofocus solution that is achieved at the top of the climb from the home point to the cruising altitude. This is using the same autofocus that DJI Go uses but to be honest it is prone to failure if a good solution cannot be found. If the focus target is bad (low contrast, different altitude than the eventual target), the solution will be bad.
At any point during the flight you can stop by hitting the 'Stop' button and then do a double tap on the area of the camera feed where you want the autofocus to be done. Choose an area of high contrast for best results.