KVOSD easily allows you to activate its PID’s settings page through a simple maneuver with your transmitter when the quadcopter is on. You have to simply ‘throttle middle and yaw right’ for the left stick and ‘pitch full’ on the right stick for about two seconds. This is for Mode 2, but if you are using Mode 1, remember the sticks are swapped.
Once you are in the PID’s page, you can move the cursor around using pitch and roll. In order to change a setting, simply yaw right to increase and yaw left to decrease the value. Remember to hold for 2 seconds to change one value and hold it for longer more rapidly. To save the settings, move the cursor to bottom ‘Save & Exit’ and yaw right. This will update Cleanflight with the adjusted settings.