Slider size change and add to multiple pages

How do I change the size of the slider to 980 x 310? How can I add the slider to multiple pages?

 

1.Bizway theme works in 960 grid system, Therefore it is not possible to increase the width of slider, If you try to increase the width of slider it breaks the layout of the theme

To decrease the height of slider

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.flexslider {
height: 310px;
}
.flexslider .slides img{
height:310px;
}

2.Unfortunately there isn't a way to do that with our theme unless you custom code something up. Sorry.
If this isn't something you're able to do then you would need to hire a developer for this.