product development, cheval mirror

Where is the 'control' in a piece of furniture such as a cheval mirror. There should be control but one of the main elements in many cheval mirrors is that the mirror is 'in' a surrounding body which is a type of frame; it is hinged on this frame ; there is tightness , relative tightness and stability ; it can't fall out of this frame; it is 'hinged' in this frame. WIthin the frame, it is able to be controlled and it is possible to control the cheval mirror manually ; there isn't that much control ; anyway how much control does one want from a mirror; how much adjustability does one want ' doesn't one want just for the mirror to 'mirror' a subject/object. Thus for a modern type of cheval mirror i.e. a cheval mirror not necessarily made of wood, then one can create a new frame for the cheval mirror? A new type of frame that the cheval mirror is hinged in? I hope to put some sketches on this idea.