I found this nice little feature in Windows 10, 8.1, and 7 to enable the magnifying glass and toggle it on/off. It really helps with those small dots on the map.
For me, it does not work well in Fullscreen mode (crashed), but it does work in Borderless Window Mode. Borderless Window Mode is still at full screen.
Toggle On: Windows Key +
Toggle Off: Windows Key ESC
Resize Window: Ctrl Alt R to resize the zoom window (drag mouse around), left click to save
Zoom Level: zoom in and out by holding Ctrl + Alt and moving the mouse wheel forward and back
Enabling Borderless Window Mode in Settings: