To make sure that all your devices receive the infrared signal, you need to place the hub in an appropriate location. For devices that the hub cannot cover, you need to extend the signal range through an infrared extension cable.
Determine whether your device is controlled via infrared, Bluetooth, or WiFi. And add your device to the hub through the corresponding method in Sofabaton APP.
Source configuration is to ensure that the device can jump to the correct input when you switch activities. Especially devices with multiple inputs such as TVs, projectors, or AV receivers.