Instructions for the map: Turns zooming in on or off: Click once in the map to zoom in centered or drag a box over the particular area. Zoom out: Click once in the map. Panning: Click in the map, hold down the mouse button, and drag in any direction. Back to original view. Note: Right-click in the map area to open the contextual SVG pop-up menu. Tip: You can disable the "Higher Quality" option to cause the SVG image to display more quickly, but with lower quality. Instructions for the legend: Turns theme on or off. Theme cannot be turned off. Instructions for the overview map: Drag grey rectangle to change extent in map.