Map Controls
• navigate
• select

Fetch box
• Top Right: ,
• Bottom left: ,

Usage: use "navigate" and left side overlays or mouse to navigate and zoom the map to your desired area
(mouse wheel zooms, drag&drop moves the map)
switch to "select" mode and mark the area you want to extract.
(click on top left of the area and hold mouse until you reached bottom right corner of your area)
on the right side your coordinates will now appear (just for informational purpose)
now click the "Get map!" Button to Download your Map.