https://www.youtube.com/watch?v=tbQdwQkXvDQ&t=56s Motorized camera slider 6 in 1 with tracking shooting, panoramic shooting, time-lapse, video capture, free set starting point, and endpoint Fixed-point shooting will adjust the red knob on both sides of the slide to the upper left corner and the lower right corner 120 degrees panorama shooting will slider the red knob on both sides of the camera slide to the lower-left corner and the upper right corner Set the starting and ending points as needed, the sliding speed, the dwell time, the sliding distance, the pause time, the number of pictures, etc. The sides and the middle of the more than 1/4 “and 3/8” screw holes can be installed on the tripod to support multiple angles Go into “Setting” through Main Menu to set the starting point A, the ending point B, speed (1% -100%), Then go back into the Main Menu and go to the Video Shot and Auto loop to start your loop shooting. Automatic round trip (or stop) (saves 80% of the time) (supports tracking shots and 120-degree panoramic shots).Time-Lapse Shooting: Go into “Setting” through Main Menu to set the starting point A, the ending point B, speed (1% -100%) Automatic round trip (or stop)