The "SuperOkna 4" is intended for the design of windows and doors, as well as structures on the basis of several blocks. Designing Windows comes the visual method, using an intuitive interface: using the mouse, you can move elements and their compounds, to divide the frame into two frames, to establish imposts, shutters, zoom in and out the window, call sash width, height, and width and height light opening. It is possible to design windows with sliding doors, bezimpostnymi doors.