Still in the "non-destructive" realm, but try this... Select the track and hit "Shift and ~" This will maximize the track height. As always, you can use the scroll wheel on your mouse to zoom in and out horizontally. To return to normal size just hit Shift and ~ again. Like I said, it's non-destructive, but maybe that's a good thing ;) EDIT: This is doesn't use Xen/SWS extensions, like the above method. This also is on a track-level and not item-level.