Controlling the scroll bar in a Panel

As some of you might know, you can put several controls inside a panel. If
you set the AutoScroll property of the panel to true, it will display a scroll
bar if the controls go beyond the size of the panel.

As I click on the scrollbar, it scrolls the controls automatically, which
is the problem. How do I control how much to scroll the controls when I
click on it?

A regular scroll bar as properties such as SmallChange or LargeChange. I
need the same for the Panel scrollbar.

Thanks for any help