Abstract: A system and a method using a system for planning a use includes at least one marking, a control and evaluation unit, a database, a display unit, at least one time of flight sensor for a spatial scanning of a real environment, and at least one camera for imaging the real environment. The real environment in a spatial model can be displayed as a virtual environment on the display unit. The marking in the real environment is arranged at a position and has an orientation. The position and the orientation of the marking can be detected at least by the time of flight sensor and the position and orientation of the marking are linked by a virtual sensor model. The virtual sensor model in the spatial model of the virtual environment can be displayed on the display unit at the position and having the orientation of the marking.