Returns or sets the amount of change of the viewport scrollbars when the user
clicks the area between the scroll box and the scroll arrow. This property is
only available when ScrollBarType = svScrollBars.
object.ScrollLargeChange [= value]
The ScrollLargeChange property syntax has these parts:
||An object expression that evaluates to a SmartViewport object.
||An integer that specifies the amount of scroll.
The ScrollLargeChange property will only accept positive values between
1 and 32,767.