[. . . ]  the “Up/Down” selection arrows (13) to select “Matching”; then press Use the Menu button (12) and the screen will display the menu of the transmitter: 4. [. . . ] If you select a number already used by another transmitter then the new connection will ignore the old one and the transmitter originally connected will no longer be able to communicate with the receiver. Press the Menu button (12); use the “Up/Down“ selection arrows (13) to select “Matching“ 6.  Press and hold down the Menu button (12) until the functioning light of the camera (20) on/off starts to flash.  With the help of a pointed object briefly press the connection button (10) at the back of the transmitter.  the connection has worked the N will change to Y and the screen will then show you the view it If has captured with the new transmitter’s camera. Use the “Up/Down“ selection arrows (13) to select “Return main” followed by “Exit” to return to normal use. [. . . ]  see the images of the various transmitters that are connected, repeat steps and select the To corresponding numbers. [. . . ]