A system and method whereby an user interface editing device is used to create a user interface for a controlling device, the created user interface including user interface elements that are associated with functional operations of a virtual equivalent of an appliance. After the created user interface is transferred to the controlling device, the virtual equivalent of an appliance is caused to be linked to an intended target appliance whereupon activation of those user interface elements of the graphical user interface that were associated with functional operations of the virtual equivalent of an appliance will cause the controlling device to transmit commands to control corresponding functional operations of the intended target appliance.