using the ah64 3d cockpit :
I call ctl+/ and can set the cockpit view
Using the 4 and 6 key I can not move backward enough to view all the cockpit
is there a way to set it in *.cfg file
You're probably talking about EECH, as EE2 doesn't have a flyable Apache as far as I know.
There is a limit to how far back you can move the view, as the seat is in the way. But you can increase Field of View, which may help some. Try Alt+F3 and Alt+F4 to change field of view.