Follow the procedure below to complete the copy
First make sure the gate is closed
1) Start copying until the "Check operation" screen
2) Press the menu key at the top right to enter manual recording as in the image below
3) Move the upper slider to 5 seconds 
4) Press once the key indicated as in the following illustration, the LED will start flashing
5) Press "Send opening signal" in the app, the signal is now saved