Using a mouse, but if you aren’t using a mouse and have an older Yes, you can zoom with the Command–Scroll Wheel feature Those tools, you’ll completely lose your route setup, forcing you to Tool and hand slider while defining the route. The worst part about route creation is the inability to use the zoom Residential streets and return to the same highway not far from where it In one case, it even had me leaving a highway to go through Routes that I created often took me through completely out-of-the-way The quality of the route can leave something to be desired, too. Even Garmin’s MapSource on my very old and slow To calculate which roads to follow after marking a route is no faster Creating a route is an exercise in patience.