Making Units Horizontal!

[Kisame]

I REALLY dont get how to make units become horizontal. I made a dummy whose model was an effect, but the art - pitch and roll angle thing doesn't go into negative numbers. I really need help, please help me someone

 

[X.e.r.e.X]

They go to negative numbers if you hold shift and then click them

 

[Kisame]

Ty Very Much ^^