A method and a device for key generation are disclosed in embodiments of the present invention. The consolidated display includes a plurality of modules, each module displaying a plurality of gift wrap items which are coordinated in color, theme or both, so that the modules are visually distinct among the consolidated display. The optimal structures along with corresponding methods for improving an actuator are claimed in the independent claims. A user defines various scripts for controlling the behavior of one or more nodes, and the network distributes the scripts, as appropriate, to various nodes thereby implementing the behavior defined by the scripts.