The Navigation option in the Menu allows you to change the area shown in the map and to change the Map scale.

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Display the Navigation image, if necessary by clicking its down-arrow in the Navigation Menu option. Click and hold on the Navigation image in the direction you want to re-center the map. You can click on any spot on the Navigation image to fine-tune the movement. |
There are four map scales available in the WIMBY Maps tool. The current scale is shown in the lower right corner of the map. 
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To change the scale, click on the plus or minus sign at the ends of the scale levels or a line in the middle. |