Click on the back arrow to go back to the previous extent.
The map takes you back to the previous extent.
Although the Zoom In Tool is the easiest way to zoom in, there is a more efficient way to zoom into your study area.
Hold down your <Shift> Key and then click on a point on the map with your left mouse button. Your pointer will change to a plus sign. You can now let go of the <Shift> key.
Do not release your left mouse button!
Drag your mouse to draw a rectangle.
Release your mouse.
The map will zoom to the extent defined by your rectangle.
This is the fastest way to zoom to any study area on your map.
This key combination of holding down the <Shift> key while dragging a rectangle with your mouse works on every JavaScript Web Application like this one.
It is a handy universal trick.
If your mouse has a scroll wheel, you can click on the map and turn the wheel forward to zoom in.
You can zoom out by clicking on the map and turning the wheel backward.
