Using visaball

The main screen where you select the ball type, either tennis or pickleball.

Mode - Single or multiple balls  

Zoom 2x - zoom the view

Annotate Ball - use bright color for ball.

Half court/Full court - half court for pickleball and paddle ball.  Full court for entire tennis court.  

Trail length - Change the length of the ball path.  

The camera preview view, press start recording button to start recording, the button will turn red, press it again to stop recording.  The reverse button changes from back to front camera.