Electronic device for controlling a plurality of source devices and controlling method thereof

A controlling method of an electronic device, comprising:

• displaying an image signal received from each of the plurality of source devices;
• according to a predetermined signal received from an input device, transmitting a control signal received from the input device transmitted to a first source device from among the plurality of source devices, to a second source device;
• and
• based on the control signal received from the input device being transmitted to the second source device according to a user input regarding the input device and an image signal reflecting the user input being received from the second source device, displaying the received image signal.

An electronic device comprising:

• a display configured to simultaneously display image signals received from a plurality of source devices;
• a communication interface which is controllable to be in a plurality of configurations to respectively transmit control signals received from an input device to the plurality of source devices and so that, when the communication interface is in a respective configuration of the plurality of configurations to transmit control signals received from the input device to a respective source device of the plurality of source devices, the communication interface does not transmit the control signals received from the input device to other source devices of the plurality of source devices;
• and
• at least one processor configured to, when the display is simultaneously displaying image signals received from a first source device of the plurality of source devices and a second source device of the plurality of source devices and the communication interface is in a first configuration of the plurality of configurations to transmit control signals received from the input device to the first source device and not the second source device, and a predetermined signal is received from the input device,
• control the communication interface to be in a second configuration of the plurality of configurations so that the communication interface transmits control signals received from the input device to the second source device and not the first source device, and
• based on a control signal being received from the input device when the communication interface is in the second configuration, control the communication interface to transmit the control signal to the second source device.