Switching Back From Arduino Code

I had uploaded some arduino code to the U-Arm Swift Pro and decided I needed to switch back to computer control through the serial commands in the Arduino IDE. After digging through the support documents I was unable to find how to do this. Does anyone know how this can be accomplished?

Please check the page 6:http://download.ufactory.cc/docs/en/Vision_Camera_Kit%20User_Maunal_180312_V1.3.pdf