You can also use the navigation menu on the far left side to manipulate the map. This provides an alternative to using drag-and-drop to navigate.
At the top of this navigation menu are four arrows, one pointing in each direction. Clicking on an arrow will move the map in that direction. Clicking on the button in between these arrows will center the map on the default location.
Below these arrows is a plus sign and a minus sign separated by what looks like a railroad track. These buttons allow you to zoom in and out. You can zoom in by clicking on the plus sign and zoom out by clicking on the minus sign. You can also click on a portion of the railroad track to zoom in to that level.


