Is there a hack to change the scroll button to scroll 1 line at a time?

[thecalip]

The current default for the scroll button is from one url to another, if no url present on the page, it function as page down. I find it very annoying especially when reading on the device. Is there a hack to change it to scroll 1 line at a time?

Thanks.

[Polen]

I also hate the way it scrolls.

[riviera]

I agree, a way of scrolling one line at a time would be sweet.