Apple's Logic Pro offers several easy (and quite handy) key-commands that let you zoom in to a region that requires some type of edit. Now typically, if a region is selected, zooming will take you to that region's start point. Usually assigned to the "Z" key, the Zoom to Fit Selection command will zoom into whatever region you have highlighted. But even easier is pressing and holding the Control key while drawing a box with the Marquee tool, which will zoom you into specific points of interest — even right down to the sample level. Learn these quick tricks and you'll find editing is suddenly going faster!