DJI Support - FAQ #5 What is the 'P A F' switch about? A. Positioned on the controller itself, this is the Flight Mode Switch that lets you toggle different flight modes;
Learn how to fly in ATTI Mode | DJI Phantom, Mavic, Inspire - YouTube
DJI Phantom 4 (PRO/ADV) Survey 3/2/1 Tilting Dual Camera Mount - MAPIR CAMERA