Abstract: A group of networked elements for controlling the equipment of a building, when the elements are in a learning mode, can be assembled by a pair of actions. The first action exerted by an installer on one of the elements should be interpreted as an interrogation concerning the state of membership in the group (for example, as included or excluded) of one of the elements of the group. The first action triggers the emission of an information signal regarding the identified element's state. The following, or second, action exerted on the chosen element is interpretable as an order for modifying the state of membership in the group of the chosen element.