It is the tool used to assemble the page and, in a sense, it can also be used to create more complex content. In fact, if the author has created extremely granularized contents, the Selector assembly activity contributes to the organization of the information itself: a typical example is the construction of a procedure in which it is possible to define a set of steps which have been created in way separated from the procedure itself and which are then aggregated within Selector in order to create a more detailed content. 

The activity of organizing information in Selector means that this tool can generate additional aggregates of information, already present, separately, within the Knowledge Base, putting together the sequence necessary to obtain the desired result.