Here’s a neat and simple trick that will slow down scrolling to a nice, leisurely pace — great if you’re trying to read while scrolling.   Welcome to Keir Thomas, author of the new book Mac Kung Fu, which contains over 300 tips, tricks, hints and hacks for OS X Lion. He’s going to be sharing with us some of his favorite and most useful tips for OS X in the coming weeks, so welcome him aboard…  OS X engineers have always paid close attention to scrolling up and down. They created scroll gestures, for example, and all Apple mice over the last few years have featured clever scrolling technologies. However, the following trick works with any mouse or touchpad — even third party PC mice: Holding down Option while you click and drag the scroller (the little bar that shows your position within a document in the scrollbar) will slow down scrolling, making it much easier to find something you’re looking for, or to scroll the document as you read.

Hold down Option while scrolling with any mouse and everything will slow down

It’s best shown in practice, so give it a try. Grab the scroller in any open window displaying a long file or webpage, then hold Option and drag. You see that as well as slowing down, scrolling becomes more fluid. Incidentally, that’s not all the Option key can do when you’re scrolling. Holding it and clicking anywhere in the scroll bar area (outside of the scroller) will cause the document to jump to that position. This can be useful when you want to jump to the top of a document — just hold down Option and click at the top of the scroll bar range.      

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