  6
   ,        6;      .

:
-     <>,                  6.         .
-          6,        6,       .         . 
-          6,        6,    <Ctrl> + <6>  .         . 
-          6,       .
-          6,   <6>  .
-               ,       .          .    
-            2D  3D    <>   .               2D/3D  .   
-       <>    .