really thanks so much pilou it's very useful and awesome , thanks again

@slbaumgartner said: Depending on why you want to see those edges, you can also do View->Hidden Geometry. because i want use S4U component on the slides

Thanks TIG for your answer and your help

really thanks TIG, really all the plugins that you have is very useful, thanks so much for your help

Thanks for your answer TIG, i really looked for that but don't know how to start this kind of shape.