Merge, separate, filter, hide, contain, expose. All these functions of living can now be interpreted simultaneously by a single furnishing system. In a transversal dimension between furniture and architecture. These are the so-called Total Living systems, chameleonic programs designed in the name of total freedom of design, designed to solve diversified storage needs and to redefine the living space. Thanks to a practically infinite modularity, to a care of the finishes at 360 degrees, to a wide range of equipment and technological features. The intervention staircase starts from the single wall, perhaps with equipped boiserie, to develop in the size of the wardrobe, even better if double-faced. Up to complex compositions of 'functional' volumes capable of marking, even with passages, the various rooms of the house. All without having to resort to masonry work. In a sense it is the design itself that generates the space. The storage unit becomes an architectural principle and changes the paradigm, because it organizes the space and does not occupy it. In this gallery of images, the combination of two different environments - a living area and a sleeping area - furnished with the same program that declines the different functions, demonstrates the 'modern Zelig' nature of these arch-furnishing systems. .