How can I change the scale of my map?

When making your map you need to decide what zoom level your map is going to be. The dynamic maps are zoomable, however, you need to specify the starting point of your map. There are multiple ways changing the scale in your dynamic map.
Method 1:
Enter the scale value in the text box. Changing scale Method 2:
Use the box to adjust the scale, you can either keep the same central point or stretch the box from different corners by holding Ctrl button on your keyboard.
Changing scale