bisec tool

I can’t find the how to of bisec tool in the manual. Only a feature list… somebody can tell me how to use it?

In Edit Mode

  • Select your mesh, or at least the parts of it on which you want to use the bisect tool (the bisect tool does nothing for unselected faces/vertices/edges)

  • click on the bisect tool button on the toolshelf
    http://i.imgur.com/5EhXN0f.jpg

  • Left click and hold that mouse button it in the 3D View then draw a line where you want to cut

  • as long as you hold your Left click you can still move the line you drew to change the direction of your bisect, once satisfied, stop holding your Left click
    http://i.imgur.com/opfN0iC.jpg

  • Press F6 and change the settings of the bisect to what you want/need
    http://i.imgur.com/BFqp7sX.jpg