change your version of the planes automatically

[54144981020]

I have a problem in autocad 2014, not change shape as the number of automatic background every time I make a change I would like to automatically generate a new version. which sometimes is not the latest version of the current plane and not when modified cambion relamente is a way to record current drawings

anyone knows how could solve this problem

thanks

[pendean]

What is a "shape"?